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Journal articles on the topic 'Magnetic ac susceptibility'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Tanaka, Kazuyoshi, Tohru Sato, Kazunari Yoshizawa, Kenji Okahara, Tokio Yamabe, and Madoka Tokumoto. "ac magnetic susceptibility of TDAE-C60." Chemical Physics Letters 237, no. 1-2 (May 1995): 123–26. http://dx.doi.org/10.1016/0009-2614(95)00296-g.

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2

Nakane, Hiroyuki, Gaku Motoyama, Setsushi Nakamura, Takashi Nishioka, and Noriaki K. Sato. "AC magnetic susceptibility measurements on UGe2." Physica C: Superconductivity 388-389 (May 2003): 531–32. http://dx.doi.org/10.1016/s0921-4534(02)02660-6.

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3

Kimishima, Y., K. Inagaki, K. Tanabe, N. Nagata, and Y. Ichiyanagi. "AC magnetic susceptibility of Bi2223-system." Journal of Magnetism and Magnetic Materials 177-181 (January 1998): 547–48. http://dx.doi.org/10.1016/s0304-8853(97)00518-0.

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4

Mei, Yu, H. L. Luo, D. X. Chen, J. Nogues, and K. V. Rao. "ac magnetic susceptibility of YBa2Cu3O7−x." Journal of Applied Physics 64, no. 5 (September 1988): 2533–36. http://dx.doi.org/10.1063/1.341637.

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5

Chakravarti, A., R. Ranganathan, and A. K. Raychaudhuri. "An automated ac-magnetic susceptibility apparatus." Pramana 36, no. 2 (February 1991): 231–41. http://dx.doi.org/10.1007/bf02845708.

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6

Wurlitzer, M., M. Lorenz, K. Zimmer, and P. Esquinazi. "ac susceptibility of structuredYBa2Cu3O7thin films in transverse magnetic ac fields." Physical Review B 55, no. 17 (May 1, 1997): 11816–22. http://dx.doi.org/10.1103/physrevb.55.11816.

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7

Jin, X. C., Y. Y. Xue, Z. J. Huang, J. Bechtold, P. H. Hor, and C. W. Chu. "ac magnetic susceptibility of melt-texturedYBa2Cu3O7−δ." Physical Review B 47, no. 10 (March 1, 1993): 6082–85. http://dx.doi.org/10.1103/physrevb.47.6082.

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8

Klik, I., Y. D. Yao, X. Yan, and C. R. Chang. "Magnetic viscosity effect in ac susceptibility measurements." Physical Review B 57, no. 1 (January 1, 1998): 92–95. http://dx.doi.org/10.1103/physrevb.57.92.

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9

Mukherjee, S., R. Ranganathan, A. Chakravarti, and S. Sil. "AC susceptibility enhancement studies in magnetic systems." Journal of Magnetism and Magnetic Materials 224, no. 3 (2001): 210–20. http://dx.doi.org/10.1016/s0304-8853(00)01391-3.

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10

Mandache, S., A. Crisan, G. Aldica, and S. Popa. "Magnetic AC susceptibility in Bi2Sr2CaCu2O8 single crystals." Journal of Superconductivity 10, no. 3 (June 1997): 211–14. http://dx.doi.org/10.1007/bf02770553.

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11

Gutiérrez, L., R. Mejías, D. F. Barber, S. Veintemillas-Verdaguer, C. J. Serna, F. J. Lázaro, and M. P. Morales. "Ac magnetic susceptibility study ofin vivonanoparticle biodistribution." Journal of Physics D: Applied Physics 44, no. 25 (June 7, 2011): 255002. http://dx.doi.org/10.1088/0022-3727/44/25/255002.

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12

Hrubovčák, Pavol, Adriana Zeleňáková, Vladimír Zeleňák, and Jana Michalíková. "AC Magnetic Susceptibility Study in Co/Au Nanoparticles." Solid State Phenomena 233-234 (July 2015): 497–500. http://dx.doi.org/10.4028/www.scientific.net/ssp.233-234.497.

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In this work we report the study of magnetic relaxation process presented in the bimetallic Co/Au nanoparticles prepared utilizing the reverse micelle method. Structural analysis of the system using synchrotron X-ray diffraction and transmission electron microscopy documented individual nanocrystalline particles of average size about 7 nm. Magnetic properties of the particles were examined by ac magnetic susceptibility measurements at temperature range 2 – 300 K at different frequencies of magnetic field. The relaxation process was revealed at temperature about 6 K. Application of several theoretical models on experimental data of magnetic susceptibility confirmed strong inter-particle interactions and novel superspin glass state in the nanoparticle system at low temperatures.

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13

Pérez, F., X. Obradors, J. Fontcuberta, M. Vallet, and J. González-Calbet. "Magnetic irreversibility in granular superconductors: AC susceptibility study." Physica C: Superconductivity 185-189 (December 1991): 1843–44. http://dx.doi.org/10.1016/0921-4534(91)91047-8.

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14

Dodrill, B. C., and J. K. Krause. "AC Magnetic Susceptibility Measurements of Organic Superconducting Materials." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 284, no. 1 (June 1, 1996): 149–60. http://dx.doi.org/10.1080/10587259608037919.

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15

Ayala-Valenzuela, O. E., J. A. Matutes-Aquino, J. T. Elizalde Galindo, and C. E. Botez. "ac susceptibility study of a magnetite magnetic fluid." Journal of Applied Physics 105, no. 7 (April 2009): 07B524. http://dx.doi.org/10.1063/1.3072783.

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16

Araujo-Moreira, F. M., P. Barbara, A. B. Cawthorne, and C. J. Lobb. "Reentrant ac Magnetic Susceptibility in Josephson-Junction Arrays." Physical Review Letters 78, no. 24 (June 16, 1997): 4625–28. http://dx.doi.org/10.1103/physrevlett.78.4625.

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17

Yang, Tong Qing, Masaya Abe, Kenji Horiguchi, and Keiji Enpuku. "Detection of magnetic nanoparticles with ac susceptibility measurement." Physica C: Superconductivity 412-414 (October 2004): 1496–500. http://dx.doi.org/10.1016/j.physc.2004.01.146.

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18

Ficko, Bradley W., Priyanka M. Nadar, and Solomon G. Diamond. "Spectroscopic AC susceptibility imaging (sASI) of magnetic nanoparticles." Journal of Magnetism and Magnetic Materials 375 (February 2015): 164–76. http://dx.doi.org/10.1016/j.jmmm.2014.10.011.

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19

Akyol, Mustafa, Ahmet Ekicibil, and Kerim Kiymaç. "AC-magnetic susceptibility of Dy doped ZnO compounds." Journal of Magnetism and Magnetic Materials 385 (July 2015): 65–69. http://dx.doi.org/10.1016/j.jmmm.2015.03.010.

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20

Abu‐Aljarayesh, I., A. Bayrakdar, N. A. Yusuf, and H. Abu‐Safia. "ac susceptibility of cobalt in mercury magnetic fluids." Journal of Applied Physics 73, no. 10 (May 15, 1993): 6970–72. http://dx.doi.org/10.1063/1.352400.

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21

del Real, R. P., G. Rosa, and H. Guerrero. "Magneto-optical apparatus to measure ac magnetic susceptibility." Review of Scientific Instruments 75, no. 7 (July 2004): 2351–55. http://dx.doi.org/10.1063/1.1765758.

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22

Wu, S. Y., Y. C. Chang, K. C. Lee, and W. H. Li. "Magnetic properties of Pb2Sr2PrCu3O8 studied by ac susceptibility." Journal of Applied Physics 83, no. 11 (June 1998): 7318–20. http://dx.doi.org/10.1063/1.367592.

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23

Hein, R. A. "ac magnetic susceptibility, Meissner effect, and bulk superconductivity." Physical Review B 33, no. 11 (June 1, 1986): 7539–49. http://dx.doi.org/10.1103/physrevb.33.7539.

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24

Gilchrist, J., and C. J. van der Beek. "Power-law resistivity, magnetic relaxation and ac susceptibility." Physica C: Superconductivity 235-240 (December 1994): 2847–48. http://dx.doi.org/10.1016/0921-4534(94)90950-4.

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25

Pozigun, S. A., and D. A. Lapshin. "Technique for sensitive measurements of AC magnetic susceptibility." Physica C: Superconductivity 235-240 (December 1994): 3181–82. http://dx.doi.org/10.1016/0921-4534(94)91117-7.

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26

Tomašovičová, Natália, Jozef Kováč, Veronika Gdovinová, Nándor Éber, Tibor Tóth-Katona, Jan Jadżyn, and Peter Kopčanský. "Alternating current magnetic susceptibility of a ferronematic." Beilstein Journal of Nanotechnology 8 (November 27, 2017): 2515–20. http://dx.doi.org/10.3762/bjnano.8.251.

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We report on experimental studies focusing on the dynamic ac magnetic susceptibility of a ferronematic. It has been shown recently, that in the isotropic phase of a ferronematic, a weak dc bias magnetic field of a few oersteds increases the ac magnetic susceptibility. This increment vanishes irreversibly if the substance is cooled down to the nematic phase, but can be reinduced by applying the dc bias field again in the isotropic phase [Tomašovičová, N. et al. Soft Matter 2016, 12, 5780–5786]. The effect has no analogue in the neat host liquid crystal. Here, we demonstrate that by doubling the concentration of the magnetic nanoparticles, the range of the dc bias magnetic field to which the ferronematic is sensitive without saturation can be increased by about two orders of magnitude. This finding paves a way to application possibilities, such as low magnetic field sensors, or basic logical elements for information storage.

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27

NAKAHIGASHI, K., S. NAKANISHI, M. KOGACHI, R. KAWANO, J. INOUE, S. NOGUCHI, and K. OKUDA. "MAGNETIC SUSCEPTIBILITY OF YBa2Cu3O7−Δy." International Journal of Modern Physics B 02, no. 06 (December 1988): 1431–38. http://dx.doi.org/10.1142/s0217979288001268.

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Magnetic properties of YBa 2 Cu 3 O 7−Δy was investigated by dc- and ac-magnetic susceptibility as a function of oxygen deficiency Δy. The susceptibility in the normal state at low temperatures is dominated by the Curie-Weiss law, while the susceptibility at high temperatures deviates from the Curie-Weiss law. The deviations were successfully explained by assuming the triplet spin-pair excitation from the antiferromagnetically coupled Cu 2+ ions in the ground state.

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28

Lo, Kin Ho, Chi Tat Kwok, Hong Cheng Kuan, Weng Kin Chan, and Wenji Ai. "Correlation between AC magnetic susceptibility and pitting behaviour of sigma-phase containing duplex stainless steel." Anti-Corrosion Methods and Materials 62, no. 6 (November 2, 2015): 371–78. http://dx.doi.org/10.1108/acmm-10-2013-1304.

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Purpose – The purpose of this paper is to characterize the pitting behaviour of sigma-phase-containing duplex stainless steel and investigate the correlation between magnetic susceptibility and pitting potentials. Design/methodology/approach – Use an alternating current (AC) magnetic susceptometer to trace the change in magnetic susceptibility associated with sigma phase formation and systematic study of the effects of sigma precipitation on pitting parameters as obtained using the anodic potentiodynamic polarization test. Findings – The precipitation of sigma phase impairs the general and pitting corrosion resistance of duplex stainless steel. The pitting potential, the corrosion potential and the AC magnetic susceptibility have good correlations. Unlike the pitting potential and the corrosion potential, the passive current and the corrosion current do not seem to possess any trend with annealing time. Originality/value – The correlation between AC magnetic susceptibility and pitting parameters has not been reported in the literature before.

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29

Wang, Sheng Hao, Augusto Marcelli, Daniele Di Gioacchino, and Zi Yu Wu. "The AC Multi-Harmonic Magnetic Susceptibility Measurement Setup at the LNF-INFN." Applied Mechanics and Materials 568-570 (June 2014): 82–89. http://dx.doi.org/10.4028/www.scientific.net/amm.568-570.82.

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The AC magnetic susceptibility is a fundamental method in materials science, which allows to probe the dynamic magnetic response of magnetic materials and superconductors. The LAMPS laboratory at the Laboratori Nazionali di Frascati of the INFN hosts an AC multi-harmonic magnetometer that allows performing experiments with an AC magnetic field ranging from 0.1 to 20 Gauss and in the frequency range from 17 to 2070 Hz. A DC magnetic field from 0 to 8 T produced by a superconducting magnet can be applied, while data may be collected in the temperature range 4.2-300 K using a liquid He cryostat under different temperature cycles setups. The first seven AC magnetic multi-harmonic susceptibility components can be measured with a magnetic sensitivity of 1x10-6 emu and a temperature precision of 0.01 K. Here we will describe in detail about schematic of the magnetometer, special attention will be dedicated to the instruments control, data acquisition framework and the user-friendly LabVIEW-based software platform.

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30

Kreissl, Patrick, Christian Holm, and Rudolf Weeber. "Frequency-dependent magnetic susceptibility of magnetic nanoparticles in a polymer solution: a simulation study." Soft Matter 17, no. 1 (2021): 174–83. http://dx.doi.org/10.1039/d0sm01554g.

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31

Tran, V. H., A. J. Zaleski, R. Troć, and P. de V. du Plessis. "Magnetic behaviour of the UCuxGey system by ac magnetic susceptibility measurements." Journal of Magnetism and Magnetic Materials 162, no. 2-3 (September 1996): 247–52. http://dx.doi.org/10.1016/s0304-8853(96)00266-1.

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32

Canepa, F., S. Cirafici, M. Napoletano, and R. Masini. "Nonlinear effects in the ac magnetic susceptibility of selected magnetic materials." Journal of Alloys and Compounds 442, no. 1-2 (September 2007): 142–45. http://dx.doi.org/10.1016/j.jallcom.2006.07.137.

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33

Namuco, S. B., M. L. Lao, and R. V. Sarmago. "Granular Responses of GdBa2Cu3O7-δ Using ac Magnetic Susceptibility Measurement under ac and dc Magnetic Fields." Physics Procedia 45 (2013): 169–72. http://dx.doi.org/10.1016/j.phpro.2013.04.079.

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34

Kuryliszyn-Kudelska, I., W. Dobrowolski, M. Arciszewska, N. Romcevic, M. Romcevic, B. Hadzic, D. Sibera, U. Narkiewicz, and W. Lojkowski. "Transition metals in ZnO nanocrystals: Magnetic and structural properties." Science of Sintering 45, no. 1 (2013): 31–48. http://dx.doi.org/10.2298/sos1301031k.

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Currently, wide-gap ZnO nanoparticles bear important potential application in electro-optical devices, transparent ultraviolet protection films, and spintronic devices. We have studied the magnetic properties of nanocrystals of ZnO(Fe, Co, Mn) prepared by two methods of synthesis. We have used the microwave assisted hydrothermal synthesis and traditional wet chemistry method followed by calcination. The detailed structural characterization was performed by means of X-ray diffraction and micro-Raman spectroscopy measurements. The morphology of the samples was studied by means of SEM and TEM microscopy. The results of systematic measurements of AC magnetic susceptibility as a function of temperature and frequency as well as SQUID magnetization are presented. The SQUID magnetization measurements revealed a clear bifurcation of the FC and ZFC plots. Such behavior suggested superparamagnetic behavior above the blocking temperature. The dynamic magnetic measurements were performed at small AC magnetic field with amplitude not exceeding 5 Oe and different frequency values (from 7 Hz to 9970 Hz). For ZnO(Fe) and ZnO(Mn), the AC susceptibility maxima has been found for in-phase susceptibility Re(?) and for out of phase susceptibility Im(?). We analyzed the observed frequency dependence of the peak temperature in the AC susceptibility curve using the empirical parameter ? that is a quantitative measure of the frequency shift and is given by the relative shift of the peak temperature per decade shift in frequency, as well as Vogel- Fulcher law. We observed two different types of magnetic behavior, spin-glasslike behavior or superparamagnetic behavior, depending on the synthesis process. For ZnO(Co) nanocrystalline samples high temperature Curie-Weiss behavior in AC magnetic susceptibility was observed. We observed that the determined negative values of the Curie- Weiss temperature ? depend strongly on the nominal content of cobalt oxide. It was shown that for calcination method the values of ? increase with the increase of magnetic ion content indicating enhancement of predominance of antiferromagnetic interactions. For hydrothermal method the opposite effect was observed indicating the breakdown of predominance of aniferromagnetic coupling with the increase of nominal magnetic ion content. This paper gives an in-depth discussion of the structural and magnetic properties of ZnO nanocrystals in addition to the technological issues such as different methods of wet chemical synthesis.

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35

Ray, A., T. K. Dey, and S. K. Ghatak. "Low Field Second Harmonic Response and AC Susceptibility of (Bi,Pb)-2223 Pellet in a Generalized Critical State Model." International Journal of Modern Physics B 17, no. 21 (August 20, 2003): 3831–46. http://dx.doi.org/10.1142/s0217979203021848.

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The AC susceptibility and second harmonic response of bulk high Tc superconductor (Bi,Pb) -2223 is measured in presence of small AC field excitation and DC magnetic field superimposed on it. This response increases with the increase in DC field whereas decreases at a higher excitation amplitude. Critical state models are used to explain the nonlinear magnetic response in HTSCs. With a generalized field dependence of critical current Jc : Jc(B) = J0/(1 + B/B0)n, the fundamental AC susceptibility and low field second harmonics response are calculated for different n values. It is found that the theoretical consideration adopted here explains the observed AC susceptibility and low field second harmonic response qualitatively reasonably well within the Anderson–Kim regime (n = 1).

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36

Kim, Y. S., Z. G. Khim, Jungbum Yoon, Younghun Jo, Myung-Hwa Jung, H. K. Choi, Y. D. Park, S. K. Jerng, and S. H. Chun. "Magnetic Anisotropy and ac Susceptibility of (Ga,Mn)As." Journal of the Korean Physical Society 50, no. 3 (March 15, 2007): 839. http://dx.doi.org/10.3938/jkps.50.839.

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37

Kimishima, Y., K. Kamimura, and Y. Ichiyanagi. "AC magnetic susceptibility by modified Bean model with Hc1." Physica C: Superconductivity 329, no. 1 (November 2000): 17–28. http://dx.doi.org/10.1016/s0921-4534(99)00510-9.

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38

Sakamoto, N., S. Noguchi, K. Mawatari, T. Akune, H. R. Khan, and K. Luders. "Magnetic susceptibility and AC loss in HgPb1223 ceramic superconductors." IEEE Transactions on Appiled Superconductivity 11, no. 1 (March 2001): 3114–17. http://dx.doi.org/10.1109/77.919722.

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39

Li, Xiang, Sining Dong, Taehee Yoo, Xinyu Liu, Sanghoon Lee, Jacek K. Furdyna, and Margaret Dobrowolska. "Anisotropic AC Magnetic Susceptibility in (Ga,Mn)As Films." IEEE Transactions on Magnetics 51, no. 11 (November 2015): 1–4. http://dx.doi.org/10.1109/tmag.2015.2442513.

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40

Klamut, P. W. "Magnetic structure ofGd2CuO4: Low-temperature anomalies in ac susceptibility." Physical Review B 50, no. 17 (November 1, 1994): 13009–12. http://dx.doi.org/10.1103/physrevb.50.13009.

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41

Déjardin, J. L., F. Vernay, and H. Kachkachi. "Specific absorption rate of magnetic nanoparticles: Nonlinear AC susceptibility." Journal of Applied Physics 128, no. 14 (October 14, 2020): 143901. http://dx.doi.org/10.1063/5.0018685.

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42

Maruyama, M., M. Hidaka, and T. Satoh. "Effect of ac susceptibility in superconductors on magnetic shielding." Applied Physics Letters 82, no. 17 (April 28, 2003): 2868–70. http://dx.doi.org/10.1063/1.1569421.

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43

Ichiyanagi, Yuko, and Yoshihide Kimishima. "AC magnetic susceptibility of Ni(OH)2 monolayered microclusters." Journal of Magnetism and Magnetic Materials 140-144 (February 1995): 1629–30. http://dx.doi.org/10.1016/0304-8853(94)00945-7.

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44

Polichetti, M., M. G. Adesso, D. Zola, A. Vecchione, M. Gombos, R. Ciancio, R. Fittipaldi, M. R. Cimberle, and S. Pace. "Magnetic history dependence of the AC susceptibility of GdSr2RuCu2Oz." physica status solidi (c) 3, no. 9 (September 2006): 3061–64. http://dx.doi.org/10.1002/pssc.200567030.

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45

Yang, Yi Yun. "Spin-Glass Behavior and the Magnetic Relaxation Effects in Nd_0.90Sr_0.10CoO₃." Advanced Materials Research 557-559 (July 2012): 680–83. http://dx.doi.org/10.4028/www.scientific.net/amr.557-559.680.

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The magnetization, ac susceptibility and magnetic relaxation of Nd0.90Sr0.10CoO3polycrystalline sample were systematically investigated in this paper. The experimental studies of susceptibility and magnetic relaxation evidence the existence of a low-temperature spin-glass. A dynamic analysis of ac susceptibility implies a spin-glass transition temperature TSG =12.17 K and the dynamical exponent zv=8. Moreover, low-temperature zero-field cooling and field cooling magnetic relaxation show perfectly mirror symmetry, and field cooling processes relaxation obeys a stretched exponential form. Therefore, our study confirms that the phase separation in Nd0.90Sr0.10CoO3originates from both the ferromagnetic clusters interaction and the spin glasslike phase at low temperature.

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46

Polichetti, M., S. Pace, and A. Vecchione. "Harmonic Analysis of the AC Magnetic Response on Directionally Solidified YBaCuO Samples." International Journal of Modern Physics B 13, no. 09n10 (April 20, 1999): 1101–6. http://dx.doi.org/10.1142/s0217979299001028.

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The transport properties and the dynamics of the flux lines have been investigated on YBaCuO melt textured by measuring the AC susceptibility harmonics as function of the temperature, at different frequencies and amplitudes of the AC magnetic field. The interpretation of the behavior of the experimental curves has been done by their comparison with the results obtained by critical state pictures and by simulations of the diffusion processes of the magnetic field which determine the AC response in presence of different regimes of flux dynamics. The temperature dependencies of the third harmonics of the AC susceptibility at different frequencies have been used in particular to determine what is the flux dynamic regime governing the magnetic response of melt textured samples in the different experimental conditions. A good qualitative agreement has been found between the experimental curves and the ones simulated by assuming that dissipation processes are a sequence of independent flux creep and flux flow events within a collective pinning framework.

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47

Okuda, K., S. Noguchi, M. Yoshikawa, N. Imanaka, H. Imai, and G. Adachi. "Magnetic study in high-Tc superconducting oxides by AC-complex magnetic susceptibility." Physica B: Condensed Matter 165-166 (August 1990): 1397–98. http://dx.doi.org/10.1016/s0921-4526(09)80284-6.

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48

Pshenichnikov, Alexander, Alexander Lebedev, and Alexey O. Ivanov. "Dynamics of Magnetic Fluids in Crossed DC and AC Magnetic Fields." Nanomaterials 9, no. 12 (November 30, 2019): 1711. http://dx.doi.org/10.3390/nano9121711.

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In this study, we derived the equations describing the dynamics of a magnetic fluid in crossed magnetic fields (bias and alternating probe fields), considering the field dependence of the relaxation times, interparticle interactions, and demagnetizing field has been derived. For a monodisperse fluid, the dependence of the output signal on the bias field and the probe field frequency was constructed. Experimental studies were conducted in a frequency range up to 80 kHz for two samples of fluids based on magnetite nanoparticles and kerosene. The first sample had a narrow particle size distribution, low-energy magneto dipole interactions, and weak dispersion of dynamic susceptibility. The second sample had a broad particle size distribution, high-energy magneto dipole interactions, and strong dispersion of dynamic susceptibility. In the first case, the bias field led to the appearance of short chains. In the second case, we found quasi-spherical clusters with a characteristic size of 100 nm. The strong dependence of the output signal on the particle size allowed us to use the crossed field method to independently estimate the maximum diameter of the magnetic core of particles.

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49

Oshima, Akito, Kouhei Kanda, Koki Fujiwara, Taisei Ide, Mayumi Takano-Kasuya, and Yuko Ichiyanagi. "PEGylation of Co–Zn Ferrite Nanoparticles for Theranostics." Journal of Nanoscience and Nanotechnology 20, no. 12 (December 1, 2020): 7255–62. http://dx.doi.org/10.1166/jnn.2020.18884.

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Multi-element ferrite nanoparticles (NPs) were synthesized as heat agents for use in magnetic hyperthermia treatments, specifically, Co0.8Zn0.2Fe2O4 NPs coating with polyethylene glycol. The crystal structures of these particles were examined by X-ray diffraction. Particle diameters were controlled to be approximately 10 nm by controlling the annealing temperature and time. The modification of polyethylene glycol (PEG) on the particles was confirmed by mass spectrometry and Fourier-transform infrared spectrometry. The heat dissipation characteristics of the particles were investigated by measuring AC magnetic susceptibility and temperature increase in AC magnetic fields. A peak in the imaginary part of AC magnetic susceptibility χ″ appeared, depending on the frequency. The value of χ″ was found to contribute to the effective heat dissipation according to the Neel relaxation system. The temperature increase of the particles was measured in AC magnetic fields of 64–146 Oe, with an observed temperature increase of ~10 K. Finally, to test the applications of these particles in theranostics, in vitro experiments using human breast cancer cells were conducted.

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50

Kumar, Pramod, Puneet Jain, and Rachana Kumar. "Pressure dependent magnetic, AC susceptibility and electrical properties of Nd7Pd3." RSC Advances 5, no. 72 (2015): 58928–35. http://dx.doi.org/10.1039/c5ra07625k.

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