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dc.contributor.authorSaha-Dasgupta, T.eng
dc.contributor.authorSatpathy, Sashi Sekhar, 1956-eng
dc.contributor.authorMeskine, Hakim, 1972-eng
dc.date.issued2004eng
dc.descriptionURL:http://link.aps.org/doi/10.1103/PhysRevLett.92.056401 DOI:10.1103/PhysRevLett.92.056401eng
dc.description.abstractWe show from ab initio density-functional calculations and model studies that, in the electron-doped manganite LaxCa1-xMnO3 (x≪1), unbound electrons are introduced into the conduction band, which then trap themselves in the exchange-induced magnetic potential wells forming the self-trapped magnetic polarons (STMP). Hopping beyond the nearest neighbors drastically reduces the binding energy, while the Jahn-Teller coupling increases it somewhat, resulting in a net binding of about 100±20   meV. The electron is self-trapped in a seven-site ferromagnetic region, beyond which the lattice is essentially antiferromagnetic. In light of the recent experiments of Neumeier and Cohn, our results suggest that the STMP may be present in the lightly electron-doped manganites.eng
dc.description.sponsorshipWe acknowledge support of this work by the U.S. Department of Energy (DE-FG02-00ER45818).eng
dc.identifier.citationPhys. Rev. Lett. 92, 056401 (2004)eng
dc.identifier.issn0031-9007eng
dc.identifier.urihttp://hdl.handle.net/10355/9313eng
dc.languageEnglisheng
dc.publisherAmerican Physical Societyeng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. College of Arts and Sciences. Department of Physics and Astronomy. Physics and Astronomy publicationseng
dc.subject.lcshPolaronseng
dc.subject.lcshTransition metalseng
dc.subject.lcshTransition metal alloyseng
dc.subject.lcshManganiteeng
dc.titleDoes the Self-Trapped Magnetic Polaron Exist in Electron-Doped Manganites?eng
dc.typeArticleeng


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