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Phase coexistence and resistivity near the ferromagnetic transition of manganites
journal contribution
posted on 2006-04-27, 15:17 authored by A.S. Alexandrov, A.M. Bratkovsky, V.V. KabanovPairing of oxygen holes into heavy bipolarons in the paramagnetic phase and their magnetic pair breaking in the ferromagnetic phase (the so-called current-carrier density collapse) has accounted for the first-order ferromagnetic-phase transition, colossal magnetoresistance, isotope effect, and pseudogap in doped manganites. Here we propose an explanation of the phase coexistence and describe the magnetization and resistivity of manganites near the ferromagnetic transition in the framework of the current-carrier density collapse. The present quantitative description of resistivity is obtained without any fitting parameters, by using the experimental resistivities far away from the transition and the experimental magnetization, and is essentially model-independent.
History
School
- Science
Department
- Physics
Pages
239523 bytesCitation
ALEXANDROV, BRATKOVSKY and KABANOV, 2006. Phase coexistence and resistivity near the ferromagnetic transition of manganites. Physical Review Letters, 96(11), 117003Publisher
© Amerian Physical SocietyPublication date
2006Notes
This article was publsihed in the journal, Physical Review Letters [© American Physical Society].ISSN
0031-9007Language
- en