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Journal articles on the topic 'ESR (electron spin resonance)'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Kameya, Hiromi. "ESR (Electron Spin Resonance)." Nippon Shokuhin Kagaku Kogaku Kaishi 60, no. 4 (2013): 198. http://dx.doi.org/10.3136/nskkk.60.198.

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2

Shimada, Shigetaka. "ESR(Electron Spin Resonance)." Kobunshi 40, no. 10 (1991): 700–703. http://dx.doi.org/10.1295/kobunshi.40.700.

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3

TSUJITA, Takahiro, and Shingo OKAMOTO. "Electron Spin Resonance." Journal of the Japan Society of Colour Material 69, no. 6 (1996): 413–21. http://dx.doi.org/10.4011/shikizai1937.69.413.

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4

Grün, Rainer. "Electron spin resonance (ESR) dating." Quaternary International 1 (January 1989): 65–109. http://dx.doi.org/10.1016/1040-6182(89)90010-4.

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5

Tolasa, Diriba. "Experimental Verification of Electron Spin Resonance (ESR) Experiment Using Resonance Curve of DPPH (Diphenyl-Picryl-Hydrazyl)." International Journal of High Energy Physics 11, no. 1 (2025): 14–28. https://doi.org/10.11648/j.ijhep.20251101.12.

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Electron Spin Resonance (ESR), also known as Electron Paramagnetic Resonance (EPR), is a sophisticated spectroscopic technique that provides critical insights into the electronic structure and dynamics of materials with unpaired electrons. This experiment focuses on the application of ESR to study the stable free radical Diphenyl-Picryl-Hydrazyl (DPPH), a compound widely utilized in various scientific fields due to its well-defined resonance characteristics. The primary objectives of this study were to observe the resonance curve of DPPH, determine the resonant frequency as a function of the a

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6

Bojanowski, Bohdan, and Sławomir Kaczmarek. "Electron spin resonance of FeVO4." Materials Science-Poland 32, no. 2 (2014): 188–92. http://dx.doi.org/10.2478/s13536-013-0192-7.

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AbstractWe report on electron spin resonance (ESR) investigations of a FeVO4 single crystal. Temperature and angular dependences of ESR resonance positions were measured and calculated in temperature range of 35–100 K. The spectra show rich angular dependences of the linewidth, the shape and the resonance field. They consist of a single broad line with asymmetric distortion. Due to the low symmetry of the crystal lattice this distortion can be explained by taking into account the influence of non diagonal dynamic susceptibility.

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7

Poirot, Nathalie, Cécile Autret-Lambert, and Raquel A. Souza. "Electron Spin Resonance of Nickelate." Advances in Science and Technology 67 (October 2010): 206–11. http://dx.doi.org/10.4028/www.scientific.net/ast.67.206.

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In the present study we focused on the nickelate system, which presents stable stripe order and allow a large domain of oxygen doping. More specifically, we studied the non-stoichiometric system La2NiO4 in which the oxygen excess tends to order. ESR technique has been used due to its sensibility to microscopic magnetic fluctuations. We present a systematic study of the charge and spin fluctuations in oxygen doped nickelates to get insight into the dynamic of the system using ESR. The intrinsic resonance signal of polycrystalline La2NiO4 - values 0.09 and 0.12 have been studied, in a large

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8

Moreno, N. O., J. G. S. Duque, P. G. Pagliuso, C. Rettori, R. R. Urbano, and T. Kimura. "Electron spin resonance (ESR) in multiferroic." Journal of Magnetism and Magnetic Materials 310, no. 2 (2007): e364-e366. http://dx.doi.org/10.1016/j.jmmm.2006.10.281.

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9

Drescher, Malte. "Functional and Highly Spatially Resolved ESR Imaging." Australian Journal of Chemistry 58, no. 1 (2005): 26. http://dx.doi.org/10.1071/ch04235.

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Electron spin resonance imaging is a technique using similar principles to the established nuclear magnetic resonance imaging; however, the very fast electron-spin relaxation time constants of the former are an experimental challenge. In order to obtain T2-weighted as well as functional images spatially resolved in the micrometer range, we use temperature-dependent pulsed X-band ESR and the back-projection reconstruction method. We present here recent results of our imaging project focussing on quasi one-dimensional organic conductors, where even pulsed conduction electron-spin resonance is po

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10

Kajiwara, Atsushi. "Characterizations of radicals formed in radical polymerizations and transfer reactions by electron spin resonance spectroscopy." Pure and Applied Chemistry 90, no. 8 (2018): 1237–54. http://dx.doi.org/10.1515/pac-2018-0401.

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Abstract Electron spin resonance (ESR, aka electron paramagnetic resonance, EPR) investigations have been conducted on radicals formed during radical polymerizations and provide a detailed characterization of the active radical species. Active propagating radicals can be observed during actual radical polymerizations by ESR/EPR. The chain lengths of the observed radicals were estimated by a combination of atom transfer radical polymerization (ATRP) and ESR/EPR. The structures of the chain end radicals were determined by analysis of the ESR/EPR spectra. An increase in the dihedral angles betwee

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11

Sahib, Mammadov, Qasimov Rashid, Dadashov Zamil, and Ahadov Ahmad. "Electron Spin Resonance Dating of Tooth Enamel." International Journal of Research Studies in Science, Engineering and Technology, 2017 4, no. 17 (2017): 1–3. https://doi.org/10.5281/zenodo.8134294.

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 In this work the ESR method has been applied to determine the age of tooth enamel found in Chukhur -Gabala archeological site (Azerbaijan, Gabala district). The investigated object was presumable the lower jaw of a bear with well - preserved tooth. The mean age of the sample was determined as 2550 ± 200 years. Keywords: ESR dating, pottery dating, tooth enamel

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12

Crăciun, C., and Aurelia Meghea. "Electron spin resonance studies of montmorillonites." Clay Minerals 20, no. 3 (1985): 281–90. http://dx.doi.org/10.1180/claymin.1985.020.3.01.

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AbstractSixteen montmorillonites (8 normal and 8 abnormal using DTA dehydroxylation criteria) from the Gurasada bentonite deposits, Romania, were investigated by ESR. The spectra showed two features: a g = 4·3 signal attributed to isolated Fe3+ ions and a broad resonance with g ∼ 2·0 which was interpreted as arising from exchange interactions between clusters of Fe3+ ions. Additional experiments suggested that the latter resonance could have a structural component. The line-shape of the two resonances varied between normal and abnormal montmorillonites, indicating that the distribution of the

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13

Kitagawa, Akio. "Electron Spin Resonance Measurement with Microinductor on Chip." Journal of Sensors 2011 (2011): 1–3. http://dx.doi.org/10.1155/2011/813636.

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The detection of radicals on a chip is demonstrated. The proposed method is based on electron spin resonance (ESR) spectroscopy and the measurement of high-frequency impedance of the microinductor fabricated on the chip. The measurement was by using a frequency sweep of approximately 100 MHz. The ESR spectra of di(phenyl)-(2,4,6-trinitrophenyl)iminoazanium (DPPH) dropped on the microinductor which is fabricated with CMOS 350-nm technology were observed at room temperature. The volume of the DPPH ethanol solution was 2 μL, and the number of spins on the micro-inductor was estimated at about 101

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14

Semeno, A. V., V. V. Glushkov, A. V. Bogach, et al. "Electron Spin Resonance in EuB₆." Solid State Phenomena 152-153 (April 2009): 349–52. http://dx.doi.org/10.4028/www.scientific.net/ssp.152-153.349.

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Cavity measurements of a high frequency (60 GHz) electron spin resonance (ESR) have been carried our for a single crystal of EuB6 at temperatures 4.2-50K in magnetic field up to 7 T, which has been aligned along [001] crystallographic direction. The influence of the experimental geometry on the parameters of the resonance line has been studied. It is found that in conditions of a homogeneous magnetic field the ESR spectrum in EuB6 is formed by a single resonance line at all temperatures including the ferromagnetic ordering region. The presence of the gradient of the magnetic field in the sampl

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15

Chaikum, N., and R. M. Carr. "Electron spin resonance studies of halloysites." Clay Minerals 22, no. 3 (1987): 287–96. http://dx.doi.org/10.1180/claymin.1987.022.3.03.

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AbstractAbsorption lines in the g ∼ 4 region of ESR spectra of three New Zealand halloysites were found to originate from similar paramagnetic centres as in kaolinites. Resonances in the g ∼ 4 region were not common to all the halloysites, although the signal at g = 2·0 for the Matauri Bay halloysite is probably due to a trapped positive hole or trapped ion. A 6-line resonance produced by Te Puke halloysite and removable by Na-saturation is attributed to exchangeable Mn on the clay surface. Low-temperature lines exhibited by all samples are due to V4+ or VO2+ replacing Al3+ in the octahedral s

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16

Khramtsov, Valery V., Igor A. Grigor’ev, David J. Lurie, Margaret A. Foster, Jay L. Zweier, and Periannan Kuppusamy. "Spin pH and SH probes: enhancing functionality of EPR-based techniques." Spectroscopy 18, no. 2 (2004): 213–25. http://dx.doi.org/10.1155/2004/870630.

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Along with significant progress in low-frequency electron spin resonance (ESR, also called electron paramagnetic resonance, EPR), other techniques such as Longitudinally-Detected ESR (LODESR), proton electron double-resonance imaging (PEDRI) and field-cycled dynamic nuclear polarization (FC-DNP) have been developed forin vivoapplications. However their potential is still far from maximally defined, in part, because of the need for new specific function-directed spin probes. An application of stable nitroxides of imidazoline and imidazolidine types provides unique possibility to measure local v

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17

Ito, Shinobu, Tomohisa Mori, Hideko Kanazawa, and Toshiko Sawaguchi. "Estimation of the Postmortem Duration of Mouse Tissue by Electron Spin Resonance Spectroscopy." Journal of Toxicology 2011 (2011): 1–11. http://dx.doi.org/10.1155/2011/973172.

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Electron spin resonance (ESR) method is a simple method for detecting various free radicals simultaneously and directly. However, ESR spin trap method is unsuited to analyze weak ESR signals in organs because of water-induced dielectric loss (WIDL). To minimize WIDL occurring in biotissues and to improve detection sensitivity to free radicals in tissues, ESR cuvette was modified and used with 5,5-dimethtyl-1-pyrroline N-oxide (DMPO). The tissue samples were mouse brain, hart, lung, liver, kidney, pancreas, muscle, skin, and whole blood, where various ESR spin adduct signals including DMPO-asco

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18

Khamlich, S., V. V. Srinivasu, A. Konkin та ін. "Photoinduced Electron Spin Resonance Phenomenon inα-Cr2O3Nanospheres". Journal of Nanomaterials 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/831065.

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The photoinduced phenomenon inα-Cr2O3nanoscaled spherical particles was investigated in the temperature range of 150 up to 315 K. An X-band electron-spin resonance spectrometry was employed to probe the magnetic behavior inα-Cr2O3under an IR illumination in the nanosecond regime. The photoinduced effect on both low and high field ESR signals appears above 280 K and is remarkably enhanced just below Néel temperatureTN. Such a photoinduced ESR phenomenon disappears in a reproducible way in the paramagnetic insulating state which occurs aboveTNof crystallineα-Cr2O3. In the antiferromagnetic phase

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19

Al-Mowali, Ali H., and Alhan D. Girgees. "Electron Spin Resonance Linewidth Studies of Vanadyl Tetraphenylporphyrin." Collection of Czechoslovak Chemical Communications 58, no. 6 (1993): 1294–98. http://dx.doi.org/10.1135/cccc19931294.

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The linewidths of the hyperfine components of the ESR spectra of vanadyl tetraphenylporphyrin in liquid toluene have been measured as a function of temperature and analyzed in detail. This has allowed the separate contributions to the observed ESR line widths from spin rotational, g tensor anisotropy, hyperfine anisotropy and unresolved nitrogen hyperfine coupling to be evaluated. These results have been used to estimate the size of the nitrogen isotropic hyperfine coupling constant and thus the extent of delocalization of the unpaired electron onto the nitrogen atoms.

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20

Bingham, Stephen J., Daniel Wolverson, and Andrew J. Thomson. "Coherent Raman detected electron spin resonance spectroscopy of metalloproteins: linking electron spin resonance and magnetic circular dichroism." Biochemical Society Transactions 36, no. 6 (2008): 1187–90. http://dx.doi.org/10.1042/bst0361187.

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The simultaneous excitation of paramagnetic molecules with optical (laser) and microwave radiation in the presence of a magnetic field can cause an amplitude, or phase, modulation of the transmitted light at the microwave frequency. The detection of this modulation indicates the presence of coupled optical and ESR transitions. The phenomenon can be viewed as a coherent Raman effect or, in most cases, as a microwave frequency modulation of the magnetic circular dichroism by the precessing magnetization. By allowing the optical and magnetic properties of a transition metal ion centre to be corre

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21

IKETANI, MOTOMI. "Electron spin resonance (ESR) and petroleum mining industry." Journal of the Japanese Association for Petroleum Technology 51, no. 1 (1986): 87–93. http://dx.doi.org/10.3720/japt.51.87.

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22

Ikeya, M. "Electron Spin Resonance (ESR) Microscopy in Materials Science." Annual Review of Materials Science 21, no. 1 (1991): 45–63. http://dx.doi.org/10.1146/annurev.ms.21.080191.000401.

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23

Raghunathan, P., and L. Kevan. "Electron spin resonance and electron spin echo spectroscopic studies of Cu2+ sites in synthetic cancrinite zeolites." Canadian Journal of Chemistry 66, no. 8 (1988): 1984–88. http://dx.doi.org/10.1139/v88-320.

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Electron spin resonance (ESR) and electron spin echo modulation (ESEM) studies of Cu2+ sites introduced by ion exchange are reported in two types of synthetic cancrinite zeolites, one of them a more hydrated sample, Na6 Al6Si6O24•8H2O (denoted C1), and the other a less hydrated sample with entrained calcium carbonate, Na6Al6Si6O24•CaCO3•8H2O (denoted C2). ESR spectra reveal that C1 activated at 100 °C contains Cu2+ sites of tetrahedral symmetry with [Formula: see text] and [Formula: see text] while at a higher activation temperature of 400 °C Cu2+ sites with a different symmetry are produced c

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24

Schweiger, Arthur. "Moderne methodische Entwicklungen in der Elektronenspinresonanz-Spektroskopie." CHIMIA 40, no. 4 (1986): 111. https://doi.org/10.2533/chimia.1986.111.

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Electron spin resonance ( ESR) is extensively used in various fields of research as a powerful toolfor the determination of molecular structures ofparamagnetic compounds. In particular solid state physics, organic and inorganic chemistry, materials science, biology, and environmental science apply this sensitive and non-destructive spectroscopic technique with great success. However, ESR often suffers from a poor spectral resolution which may severely limit its applicability. The demand for improved resolution in electron spin resonance stimulated the development of various novel experimental

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25

BERG, A., D. WEISS, K. V. KLITZING, and R. NÖTZEL. "SPIN SPLITTING IN A TWO DIMENSIONAL ELECTRON SYSTEM DETERMINED BY NUCLEAR MAGNETIC RELAXATION AND MAGNETOTRANSPORT ACTIVATION MEASUREMENTS." International Journal of Modern Physics B 07, no. 01n03 (1993): 474–79. http://dx.doi.org/10.1142/s0217979293000998.

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The spin splitting observed in two-dimensional electron systems at high magnetic fields is not only determined by the single-electron Zeeman energy but also by many-particle effects. Electron-electron interaction results in an enhanced g-factor which can be described by the exchange part of the Coulomb interaction. Nuclear spin lattice relaxation experiments analysing the Overhauser Shift in Electron Spin Resonance (ESR) measurements reveal that the exchange term is dominant. The spin splitting is strongly dependent on magnetic field and temperature. Numerical simulations enable the quantitati

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26

MISRA, A. P., G. BRODIN, M. MARKLUND, and P. K. SHUKLA. "Circularly polarized modes in magnetized spin plasmas." Journal of Plasma Physics 76, no. 6 (2010): 857–64. http://dx.doi.org/10.1017/s0022377810000450.

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AbstractThe influence of the intrinsic spin of electrons on the propagation of circularly polarized waves in a magnetized plasma is considered. New eigenmodes are identified, one of which propagates below the electron cyclotron frequency, one above the spin-precession frequency, and another close to the spin-precession frequency. The latter corresponds to the spin modes in ferromagnets under certain conditions. In the non-relativistic motion of electrons, the spin effects become noticeable even when the external magnetic field B0 is below the quantum critical magnetic field strength, i.e. B0 &

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27

Hutton, DR, JR Pilbrow, GJ Troup, and JO Warne. "Electron Spin Resonance of Ti3+ in Synthetic Beryl." Australian Journal of Physics 45, no. 2 (1992): 253. http://dx.doi.org/10.1071/ph920253.

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28

Zhang, Feng, Zhiyu Sun, and Jianguo Cui. "Research on the mechanism and reaction conditions of electrochemical preparation of persulfate in a split-cell reactor using BDD anode." RSC Advances 10, no. 56 (2020): 33928–36. http://dx.doi.org/10.1039/d0ra04669h.

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Through cyclic voltammetry (CV) curve, electron spin resonance spectroscopy (ESR) characterization and free radical competitive trapping experiment, an analysis was performed on the mechanism of persulfate (PDS) electro-synthesis by sulfate at boron-doped diamond (BDD) anode.

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29

Martinez, L. M., M. D. Teran, R. R. Chianelli, S. R. J. Hennadige, and S. R. Singamaneni. "Magnetic Defects in Transitional Metal Di-Chalcogenide Semiconducting Layers." MRS Advances 3, no. 6-7 (2018): 351–57. http://dx.doi.org/10.1557/adv.2018.110.

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ABSTRACTIn this work, we report on the electron spin resonance (ESR) studies performed on few-layered nanocrystalline (NCs) MoS2, WS2, and TiS2 prepared using hydrothermal and vapor transport methods. From the temperature dependent ESR spectra collected from MoS2 NCs, we have identified adsorbed oxygen species, sulphur vacancies, thio- and oxo-Mo5+ related paramagnetic defect centers. WS2 NCs have exhibited W+3 and oxo-W+5 paramagnetic defect spin species. TiS2 NCs showed defects such as Fe3+ (unwanted), oxygen and sulfur vacancies. This work demonstrates the usage of spin-sensitive spectrosco

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30

NAKAI, Yumi. "Foundation and Aplication of Electron Spin Resonance." Journal of the Japan Society of Colour Material 78, no. 11 (2005): 539–45. http://dx.doi.org/10.4011/shikizai1937.78.539.

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31

Zinovieva, Aigul, Natalia Stepina, Anatoly Dvurechenskii та ін. "Simultaneous Localization of Electrons in Different Δ-Valleys in Ge/Si Quantum Dot Structures". Solid State Phenomena 233-234 (липень 2015): 415–18. http://dx.doi.org/10.4028/www.scientific.net/ssp.233-234.415.

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In the present work the possibility of simultaneous localization of two electrons in Δ100 and Δ001 valleys in ordered structures with Ge/Si quantum dots (QD) was verified experimentally by electron spin resonance (ESR) method. ESR spectra obtained for the ordered ten-layered QD structure in the dark shows the signal corresponding to electron localization in Si at the Ge QD base edges, in Δ100, Δ010 valleys (gzz=1.9985, gin-plane=1.999). Light illumination causes the appearance of a new ESR line (gzz=1.999) attributed to the electrons in Δ001 valley localized at the QD apexes. Observed effect i

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32

Yin, Ouyang, Yue, Wang, and Xia. "High Magnetic Field ESR in S = 1 Skew Chain Antiferromagnet Ni2V2O7 Single Crystal." Crystals 9, no. 9 (2019): 468. http://dx.doi.org/10.3390/cryst9090468.

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We report electron spin resonance (ESR) in S = 1 skew chain antiferromagnet Ni2V2O7, which exhibits a spin-flop transition and a well-defined 1/2 magnetization plateau. The antiferromagnetic (AFM) ordering at TN = 7 K can be reflected by the temperature-dependent ESR spectra at low frequency for the easy axis. At 2 K, at the spin-flop transition fields along the easy a and b axes, anomalies are observed from the frequency‒field relationship. However, these modes cannot be understood by the conventional two-sublattice AFM resonance theory with uniaxial anisotropy. For the easy b axis, an unusua

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33

Hwang, Jiyoon, Denis Krylov, Robbie Elbertse, et al. "Development of a scanning tunneling microscope for variable temperature electron spin resonance." Review of Scientific Instruments 93, no. 9 (2022): 093703. http://dx.doi.org/10.1063/5.0096081.

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Recent advances in improving the spectroscopic energy resolution in scanning tunneling microscopy (STM) have been achieved by integrating electron spin resonance (ESR) with STM. Here, we demonstrate the design and performance of a homebuilt STM capable of ESR at temperatures ranging from 1 to 10 K. The STM is incorporated with a homebuilt Joule–Thomson refrigerator and a two-axis vector magnet. Our STM design allows for the deposition of atoms and molecules directly into the cold STM, eliminating the need to extract the sample for deposition. In addition, we adopt two methods to apply radio-fr

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34

Tamulienė, J., A. Tamulis, and J. Kulys. "Electronic Structure of Dodecyl Syringate Radical Suitable for ESR Molecular Quantum Computers." Nonlinear Analysis: Modelling and Control 9, no. 2 (2004): 185–96. http://dx.doi.org/10.15388/na.2004.9.2.15166.

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The neutral radical of dodecyl syringate is suggested as a candidate for molecular Electron Spin Resonance (ESR) quantum computers. The first principle of quantum chemical calculations indicates that this molecule with a stable delocalised electron spin may represent a qubit in quantum information processing. The spin density analysis exhibits that unpaired spin of the radical is delocalised in the region of not-compensated valence bond. Isotropic Fermi contact coupling constants and anisotropic spin dipole couplings was investigated and indicated the largest hyperfine splitting (HFS) of ESR s

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35

Ohta, H., S. Okubo, H. Kikuchi, and S. Ono. "Millimetre-wave ESR (electron-spin resonance) measurements of frustrated system ZnCr2xGa22xO4." Canadian Journal of Physics 79, no. 11-12 (2001): 1387–91. http://dx.doi.org/10.1139/p01-089.

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The magnetic properties of a three-dimensional topological frustrated system ZnCr2xGa2-2xO4, which is an anti-ferromagnet with a spinel structure, have been investigated by our millimetre-wave ESR (electron-spin resonance) measurements using the pulsed magnetic field up to 16 T in the temperature region from 1.8 to 265 K. In the high-temperature region, typical Cr3+ EPR (electron-paramagnetic resonance) with the g-value of 1.95 was observed. For the x = 1 sample, AFMR (anti-ferromagnetic resonance) with the easy-plane-type magnetic anisotropy was observed below TN. It turned out that the anti-

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36

Jain, Manu. "Electron Spin Resonance Of Vo2+ In Likso4 Single Crystals." Zeitschrift für Naturforschung A 59, no. 7-8 (2004): 488–90. http://dx.doi.org/10.1515/zna-2004-7-813.

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Electron spin resonance of VO2+ doped in LiKSO4 single crystals has been studied at 295 K, using an X-band spectrometer. Three sites have been observed. VO2+ enters the lattice at Li and K substitutional sites. The ESR spectra have been analysed and spin-Hamiltonian parameters evaluated. PACS: 76.30 F

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37

Grün, Rainer, Henry P. Schwarcz, and Steve Zymela. "Electron spin resonance dating of tooth enamel." Canadian Journal of Earth Sciences 24, no. 5 (1987): 1022–37. http://dx.doi.org/10.1139/e87-099.

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The amplitude of the electron spin resonance (ESR) peak at g = 2.0018 for hydroxyapatite of fossil tooth enamel can be used to measure the acquired radiation dose (AD) and thus the time (T) since burial of the tooth in a sediment. No significant fading or saturation occurs up to at least 1 Ma, permitting dating of middle Pleistocene deposits. AD is determined by the additive-dose method, using a sufficiently large modulation amplitude to avoid the interference of organic free radicals, and a logarithmic transformation of the ESR intensity to correct for saturation effects. AD increases through

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38

Chipara, Mircea, William J. Brittain, Kin-tak Lau, and Magdalena Dorina Chipara. "Polycarbonate-Carbon Nanofibers Composites: An Electron Spin Resonance Study." Polymers and Polymer Composites 16, no. 8 (2008): 519–26. http://dx.doi.org/10.1177/096739110801600805.

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Electron spin resonance investigations on polycarbonate loaded with various amounts of carbon nanofibers (ranging from 0% to 10%) are reported. A complex resonance spectrum was recorded. The spectrum was assigned to the convolution of resonance lines originating from the conducting electrons delocalized over the metallic domains of nanotubes, of free radicals generated during the polymer processing, and of catalyst's traces. The shape of resonance spectra originating from conducting electrons delocalized over the metallic domains of nanotubes was accurately fitted by a Lorentzian-like shape. T

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39

Walzak, Mary Jane, and John R. Harbour. "Electron spin resonance detection of heterogeneous reactions of Pigment Red 122." Canadian Journal of Chemistry 68, no. 4 (1990): 640–43. http://dx.doi.org/10.1139/v90-098.

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Electron spin resonance spectroscopy (ESR) has been used to investigate the electrochemical and photolytic behaviour of particulate C.I. Pigment Red 122. Heterogeneous electrochemical reduction and oxidation of the pigment resulted in different reversible ESR signals with the radical cation giving a signal of ΔHpp = 2.3 G and g-factor of 2.0033 and the radical anion giving ΔHpp = 3.2 G and g-factor 2.0039. On exposure to light the inherent ESR signal, which was determined to be a two-component signal, increased in intensity by a factor of 2.4 but did not change in linewidth or g-factor. This l

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40

Radtke, Ulrich, Rainer Grün, and Henry P. Schwarcz. "Electron Spin Resonance Dating of the Pleistocene Coral Reef Tracts of Barbados." Quaternary Research 29, no. 3 (1988): 197–215. http://dx.doi.org/10.1016/0033-5894(88)90030-0.

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The reef tracts of Barbados have been investigated by electron spin resonance dating; all parameters necessary for ESR dating (including effective α-efficiency and thermal stability) were determined without cross checking with another independent dating method. In addition, some U-series analyses were carried out in order to test the reliability of ESR. In most cases, the results show a satisfactory agreement between ESR and both these and previously published U-series dates (M. L. Bender, R. G. Fairbanks, F. W. Taylor, R. K. Matthews, J. G. Goddard, and W. S. Broecker (1979). Geological Socie

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41

Rech, Amanda Burg, Angela Kinoshita, Paulo Marcos Donate, Otaciro Rangel Nascimento, and Oswaldo Baffa. "Electron Spin Resonance Dosimetry Studies of Irradiated Sulfite Salts." Molecules 27, no. 20 (2022): 7047. http://dx.doi.org/10.3390/molecules27207047.

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The study of new materials for radiation dosimetry is important to improve the present state of the art and to help in cases of accidents for retrospective dosimetry. Sulfites are compounds that contain a sulfur ion, widely used in the food industry. Due to the significant application of these compounds, sulfites are interesting candidates for accidental dosimetry, as fortuitous radiation detectors. The presence of the SO3− anion enables its detection by electron spin resonance (ESR) spectroscopy. The Dose–Response behavior, signal stability and other spectral features were investigated for so

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GORONCY, ALEXANDER K., HORACIO A. FARACH, CHARLES P. POOLE JR., M. FRANCISCO GONZALEZ, TOMAS DE PAOLI, and ALFREDO HAGER. "GLUTATHIONE DECAY IN STORED BLOOD MEASURED BY ELECTRON SPIN RESONANCE." Journal of Biological Systems 04, no. 01 (1996): 39–44. http://dx.doi.org/10.1142/s0218339096000053.

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An electron spin resonance has been developed by our group which employs spin labeled erythrocytes to study the decay of glutathione in stored blood. The results are compared with determinations made by the usual optical method. The values of the glutathione concentration C(t) in the blood fit the stretched exponential equation. [Formula: see text] where C0 is the initial concentration, at time t=0, Cf is the final concentration at time t→∞, and the constants n and τ have the average values [Formula: see text] for the ESR and optical determinations. The reproducibility is better and the scatte

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Holubová, Jana, Zdeněk Černošek, and Ivan Pavlík. "Electron Spin Resonance Super-Hyperfine Splitting Study of Polycrystalline Niobocene and Vanadocene Dichlorides." Collection of Czechoslovak Chemical Communications 61, no. 12 (1996): 1767–72. http://dx.doi.org/10.1135/cccc19961767.

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The electron spin resonance (ESR) spectra of niobocene and vanadocene dichlorides were studied on the title compounds prepared as magnetically diluted species in polycrystalline form. The resolved super-hyperfine splitting of anisotropic ESR spectra of both studied compounds was firstly observed. Computer simulation confirmed that this super-hyperfine splitting is due to interaction of unpaired electron with nuclear spin of two chlorine ligands. Average value of super-hyperfine coupling constant is 13.3 MHz for niobocene dichloride. For vanadocene dichloride, it is estimated to be in the range

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Saiz, C. L., E. Castro, L. M. Martinez, S. R. J. Hennadige, L. Echegoyen, and S. R. Singamaneni. "Electron Spin Resonance Investigations on Perovskite Solar Cell Materials Deposited on Glass Substrate." MRS Advances 3, no. 32 (2018): 1831–36. http://dx.doi.org/10.1557/adv.2018.171.

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ABSRTACTIn this article, we report low-temperature electron spin resonance (ESR) investigations carried out on solution processed three-layer inverted solar cell structures: PC61BM/CH3NH3PbI3/PEDOT:PSS/Glass, where PC61BM and PEDOT:PSS act as electron and hole transport layers, respectively. ESR measurements were conducted on ex-situ light (1 Sun) illuminated samples. We find two distinct ESR spectra. First ESR spectra resembles a typical powder pattern, associated with gx = gy = 4.2; gz = 9.2, found to be originated from Fe3+ extrinsic impurity located in the glass substrate. Second ESR spect

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Zhang, Xiaowei, Chunhui Liu, Wenhan Tian, et al. "Theoretical and experimental investigation of the antioxidative activity of monascin." Food & Function 11, no. 7 (2020): 5915–23. http://dx.doi.org/10.1039/c9fo02410g.

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Nakazawa, H., K. Ichimori, Y. Shinozaki, H. Okino, and S. Hori. "Is superoxide demonstration by electron-spin resonance spectroscopy really superoxide?" American Journal of Physiology-Heart and Circulatory Physiology 255, no. 1 (1988): H213—H215. http://dx.doi.org/10.1152/ajpheart.1988.255.1.h213.

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A recent study has indicated that the generation of an oxygen radical in freeze-clamped myocardium on reperfusion can be directly demonstrated using electron-spin resonance spectroscopy (ESR). However, the results need to be analyzed with caution, since artifactual radicals are misleading problems common to this method. To test whether that reported superoxide is truly the biologically existing radical or an artifactual radical, we performed experiments using isolated, perfused rat and rabbit hearts and open-chest canine hearts subjected to ischemia/reperfusion. Radicals were freeze trapped at

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Laguta, O., A. Sojka, A. Marko, and P. Neugebauer. "Rapid scan ESR: A versatile tool for the spin relaxation studies at (sub)THz frequencies." Applied Physics Letters 120, no. 12 (2022): 120502. http://dx.doi.org/10.1063/5.0083010.

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The development of pulse electron spin resonance (ESR) spectroscopy at microwave frequencies above 100 GHz is rather challenging and expensive due to the low output power of modern high-frequency solid state electronics. However, there is a number of scientific problems that require spin relaxation measurements at THz frequencies. The rapid scan ESR is an alternative technique that does not require high microwave power and still provides information on the spin relaxation times. The method takes advantage of fast sweeps of the excitation microwave frequency over the ESR line. When the frequenc

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SAKAWA, Mitsuhiro. "Coal study by means of Electron Spin Resonance (ESR)." Journal of the Fuel Society of Japan 64, no. 11 (1985): 897–910. http://dx.doi.org/10.3775/jie.64.11_897.

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KOJIMA, Takuji, and Ryuichi TANAKA. "High-Dose Dosimetry Using Electron Spin Resonance(ESR) Spectroscopy." RADIOISOTOPES 41, no. 6 (1992): 320–30. http://dx.doi.org/10.3769/radioisotopes.41.6_320.

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Freitas, G. S., H. Pizzi, F. B. Carneiro, et al. "Electron Spin Resonance (ESR) studies on GdCuBi2 intermetallic antiferromagnet." Journal of Magnetism and Magnetic Materials 613 (February 2025): 172651. http://dx.doi.org/10.1016/j.jmmm.2024.172651.

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