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Relevant bibliographies by topics / Polaronic ferromagnetism

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Academic literature on the topic 'Polaronic ferromagnetism'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Polaronic ferromagnetism"

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Pereira, E. C., A. A. Correa, L. O. S. Bulhões, et al. "Polaronic ferromagnetism in conducting polymers." Journal of Magnetism and Magnetic Materials 226-230 (May 2001): 2023–25. http://dx.doi.org/10.1016/s0304-8853(01)00095-6.

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Fukutome, Hideo, Akira Takahashi, and Masa-aki Ozaki. "Design of conjugated polymers with polaronic ferromagnetism." Chemical Physics Letters 133, no. 1 (1987): 34–38. http://dx.doi.org/10.1016/0009-2614(87)80048-9.

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F., R. de Paula*1 E. C. Pereira2 and A. J. A. de Oliveira3. "EFFECTS OF ISOSTATIC PRESSURE ON THE MAGNETIC PROPERTIES OF POLY(3-HEXYLTHIOPHENE)." INTERNATIONAL JOURNAL OF RESEARCH SCIENCE & MANAGEMENT 4, no. 12 (2017): 1–7. https://doi.org/10.5281/zenodo.1096936.

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We have observed the variation of the magnetic saturation, and Curie temperature (T<sub>C</sub>) in samples of the poly(3-hexylthiophene) doped with ClO<sup>-</sup><sub>4  </sub> isostatically pressed.  We attribute this behaviorto the continuous variation of the interchain interaction induced by different pressures used during the sample preparation. We believe that the pressure induces an increase in exchange interaction interchains because of the reduction of the distance interchain, contributing to the increase in the ferromagnetic behavior observed in the samples.

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Anderson, Kraig K., and Dennis A. Dougherty. "An Improved Model for One-Dimensional Polaronic Ferromagnetism: Electrochemically Doped Poly(m-phenylenefuchsone)." Advanced Materials 10, no. 9 (1998): 688–92. http://dx.doi.org/10.1002/(sici)1521-4095(199806)10:9<688::aid-adma688>3.0.co;2-m.

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Yao, K. L., M. Zhao, and Z. L. Liu. "Stability and Spin Density in Doped Quasi-One-Dimensional Non-Conjugated Organic Ferromagnets." Modern Physics Letters B 12, no. 27 (1998): 1125–32. http://dx.doi.org/10.1142/s0217984998001311.

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The effects of polarons on the stability of ferromagnetic state in doped quasi-one-dimensional non-conjugated organic ferromagnets are investigated. It is shown that spin density wave of doped main chain near the polaron appears amplitude distortion which changes the stability of the ferromagnetic state. If the spins of polarons along the main chain are contrary to those of side radicals' electrons, the stability of the ferromagnetic state will be strengthened. Under the opposite condition, the stability will be weakened.

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Wang, Weiyuan, Jiyu Fan, Huan Zheng, et al. "Two conductive mechanisms in LaMnO3 thin film: Adiabatic and nonadiabatic small polaronic hopping." Modern Physics Letters B 35, no. 19 (2021): 2150310. http://dx.doi.org/10.1142/s0217984921503103.

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We have presented the structural, surface morphology, magnetic and resistivity data for perovskite LaMnO3 epitaxial thin films which are fabricated on well-oriented (001) LaAlO3 substrates by pulsed laser deposition technique. X-ray diffraction [Formula: see text]–[Formula: see text] linear scans and reciprocal space mapping measurement confirm that the out-of-plane and in-plane epitaxial relationship are LMO(001)/LAO(001) and LMO(110)/LAO(110), respectively. Surface roughness determined by atomic force microscopy was no more than 0.3 nm. In the whole studied temperature range, all films only

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MALOZOVSKY, Y. M., and J. D. FAN. "POLARON AND SPIN-POLARON EFFECTS IN THE COLOSSAL MAGNETORESISTANCE." International Journal of Modern Physics B 13, no. 29n31 (1999): 3808–14. http://dx.doi.org/10.1142/s0217979299003969.

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The polaron formation due to the strong interaction of electrons with the optical phonons in a layered manganese oxides is considered. The diffusion of nearly localized polarons in the presence of the spin-dependent and multiple scattering on the randomly oriented and/or distributed magnetic moments of atoms is considered. The spin diffusion coefficient in the case of the exchange interaction between the diffusive but nearly localized polarons is evaluated. It is shown that the polaron localization leads to the vanishing of the spin diffusion and hence the ferromagnetic phase transition. The s

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DAS, PROLOY TARAN, Arun Kumar Nigam, and Tapan Kumar Nath. "Emergence of size induced metallic state in the ferromagnetic insulating Pr0.8Sr0.2MnO3 manganite: Breaking of surface polarons." JOURNAL OF ADVANCES IN PHYSICS 8, no. 2 (2015): 2084–93. http://dx.doi.org/10.24297/jap.v8i2.1517.

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Nano-dimensional effects on electronic-, magneto-transport properties of granular ferromagnetic insulating (FMI) Pr0.8Sr0.2MnO3 (PSMO) manganite (down to 40 nm) have been investigated in details. From the electronic and magnetic transport properties, a metallic state has been observed in grain size modulation by suppressing the ferromagnetic insulating state of PSMO bulk system. A distinct metal-insulator transition (MIT) temperature around 150 K has been observed in all nanometric samples. The observed insulator to metallic transition with size reduction can be explained with surface polaron

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VASILIU-DOLOC, L., R. OSBORN, S. ROSENKRANZ, et al. "POLARON ORDERING IN FERROMAGNETIC COLOSSAL MAGNETORESISTIVE OXIDES." International Journal of Modern Physics B 14, no. 29n31 (2000): 3711–18. http://dx.doi.org/10.1142/s021797920000426x.

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We review our recent x-ray and neutron scattering studies that reveal static diffuse scattering due to polarons in the paramagnetic phase of the colossal magnetoresistive manganites La 2-2x Sr 1+2x Mn 2 O 7, with x=0.40 and 0.44. We show that the polarons exhibit short-range incommensurate correlations that grow with decreasing temperature, but disappear abruptly at the combined ferromagnetic and metal-insulator transition in the x=0.40 system because of the sudden charge delocalization, while persisting at low temperature in the antiferromagnetic x=0.44 system. The "melting" of the polaron or

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LYUKSYUTOV, I. F., and V. L. POKROVSKY. "MAGNETIC POLARONS MEDIATED PERCOLATIVE PHASE TRANSITION IN MANGANITES." Modern Physics Letters B 13, no. 12n13 (1999): 379–84. http://dx.doi.org/10.1142/s0217984999000476.

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We discuss possible models for describing the metal-insulator phase transition coupled with paramagnetic-ferromagnetic phase transition in manganites. We argue that current models have apparent drawbacks. As a way to explain experiments we introduce the magnetic (large) polaron model. In this model, the conductivity appears as a result of percolative overlapping of magnetic polarons which coexist with small (Jahn-Teller) polarons. We compare this model with the experimental data.

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Dissertations / Theses on the topic "Polaronic ferromagnetism"

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Anderson, Kraig Knute Dougherty Dennis A. "An improved model for one-dimensional polaronic ferromagnetism : poly-meta-phenylenefuchsone /." Diss., Pasadena, Calif. : California Institute of Technology, 1996. http://resolver.caltech.edu/CaltechETD:etd-10102006-144012.

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Lago, Jorge. "Magnetic ordering and dynamics of two transition metal oxide systems." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.670216.

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Henning, Soeren. "Elektronendynamik und Phasendiagramme in Vielteilchen-Modellen des Magnetismus." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2013. http://dx.doi.org/10.18452/16803.

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Der erste Teil dieser Arbeit ist dem Kondogittermodell gewidmet. Für ein Elektron, das in einen ferromagnetisch gesättigten Hintergrund aus lokalen Spinmomenten eingebracht wird (ferromagnetisches Polaron), wird die stationäre Schrödingergleichung gelöst und das vollständige Eigenwertspektrum im endlichen und unendlichen Gitter abgeleitet. Danach wird die zeitabhängige Schrödingergleichung für beliebige Anfangsbedingungen gelöst und eine detaillierte Analyse des Down-Elektron-Zerfalls vorgenommen. Für endliche Bandfüllungen wird im Anschluss das magnetische Grundzustandsphasendiagramm mit H

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Anderson, Kraig Knute. "An improved model for one-dimensional polaronic ferromagnetism: poly-meta-phenylenefuchsone." Thesis, 1996. https://thesis.library.caltech.edu/4022/1/Anderson_kk_1996.pdf.

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The design, reductive doping, and magnetic characterization of poly-meta-phenylenefuchsone, an improved model for one-dimensional polaronic ferromagnetism, are described. Previous work demonstrated that delocalized radical cations, when linked through appropriate topologies, can exhibit ferromagnetic, or high spin interactions between unpaired electron spins. Consideration of these examples led to the choice of the radical anion of 2,6-di-tert-butylfuchsone as a spin containing unit, due to its relative stability, solubility, spin density, and ease of generation. Electrochemical doping of its

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Amico, Andrea. "Probing the many body dynamics of ultracold repulsive Fermi gases of lithium atoms." Doctoral thesis, 2019. http://hdl.handle.net/2158/1184320.

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Itinerant ferromagnetism describes systems comprising microscopic magnetic moments which are not localized in space but are instead mobile. This concept was introduced back in the thirties by the British theoretical physicist Edmund Clifton Stoner, who first devised a minimal model to describe a ferromagnetic instability in a homogeneous Fermi gas driven by short-range repulsive interactions: in a free electron gas, the competition be- tween the kinetic energy, given by the Pauli pressure, and the interaction energy, given by the screened Coulomb potential, drives a paramagnetic to ferromagnet

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Book chapters on the topic "Polaronic ferromagnetism"

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Chand Verma, Kuldeep. "Diluted Magnetic Semiconductor ZnO: Magnetic Ordering with Transition Metal and Rare Earth Ions." In Magnetic Materials [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.90369.

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For advancement in future spintronics, the diluted magnetic semiconductors (DMSs) might be understood for their origin of ferromagnetic aptness. It not much clear to the ferromagnetism in DMS, that is intrinsic or via dopant clustering formation. For this, we have included a review study for the doping of transition metal and rare earth ions in ZnO. It is realized that the antiferromagnetic ordering is found in doped ZnO to achieve high-TC ferromagnetism. X-ray diffraction and Raman spectra techniques have been used to detect the wurtzite ZnO structure and lattice defects. Since ZnO has differ

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KOCHETOV, E. A. "SU(2) PATH INTEGRAL FOR THE HEISENBERG FERROMAGNETIC." In Perspectives of Polarons. WORLD SCIENTIFIC, 1996. http://dx.doi.org/10.1142/9789812385352_0010.

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Conference papers on the topic "Polaronic ferromagnetism"

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Först, M., C. Manzoni, S. Kaiser, Y. Tomioka, Y. Tokura, and A. Cavalleri. "Coherent polarons in ferromagnetic La0.7Sr0.3MnO3." In International Conference on Ultrafast Phenomena. OSA, 2010. http://dx.doi.org/10.1364/up.2010.me46.

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Hashimoto, Y. "Photo-induced ferromagnetism in bulk-Cd0.95Mn0.05Te via exciton magnetic polarons." In PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors - ICPS-27. AIP, 2005. http://dx.doi.org/10.1063/1.1994619.

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Xing, G. Z., J. B. Yi, D. D. Wang, et al. "Bound magnetic polarons induced ferromagnetism in transition-metal-doped oxide nanostructures." In 2010 IEEE 3rd International Nanoelectronics Conference (INEC). IEEE, 2010. http://dx.doi.org/10.1109/inec.2010.5425000.

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