Colossal resistivity change besides magnetoresistance: an extended theoretical framework for electronic transport of manganites

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dc.creatorDong, S.
dc.creatorWang, K. F.
dc.creatorZhu, Han
dc.creatorYao, X. Y.
dc.creatorLiu, J. -M.
dc.date2005-04-27
dc.date2005-08-29
dc.date.accessioned2026-07-07T12:11:45Z
dc.date.available2026-07-07T12:11:45Z
dc.descriptionCurrent theoretical approaches to manganites mainly stem from magnetic framework, in which the electronic transport is thought to be spin-dependent and the double exchange mechanism plays a core role. However, quite a number of experimental observations can yet not be reasonably explained. For example, multiplicate insulator-metal transitions and resistivity reduction induced by perturbations other than magnetic field, such as electric current, are not well understood. A comprehensive analysis on earlier extensive studies is performed and two types of origins for resistivity change are highlighted. Besides the insulated-to-metallic transition induced by external field such as magnetic field, the insulated-to-insulated transition induced extrinsically is even a more important source for the colossal resistivity change. We propose an extended framework for the electronic transport of manganites, in which the contribution of charge degree of freedom is given a special priority.
dc.description12 pages, 3 figures (contained in the pdf file). submitted to Physical Review B
dc.identifierhttps://arxiv.org/abs/cond-mat/0504706
dc.identifierhttp://arxiv.org/abs/cond-mat/0504706
dc.identifierFrontiers of Physics in China 1, 362-367 (2006)
dc.identifierdoi:10.1007/s11467-006-0025-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210321
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.titleColossal resistivity change besides magnetoresistance: an extended theoretical framework for electronic transport of manganites
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