Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in La 1-x Sr x MnO 3
TLDR
A model which incorporates the physics of dynamic Jahn-Teller and double-exchange effects is presented and solved via a dynamical mean field approximation to reproduce the behavior of the resistivity and magnetic transition temperature observed in Sr_x MnO_3.Abstract:
A model for the doped rare-earth manganites such as ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3}$ incorporating the physics of dynamic Jahn-Teller and double-exchange effects is presented and solved via a dynamical mean field approximation. The interplay of these two effects as the electron phonon coupling is varied reproduces the observed behavior of the resistivity and magnetic transition temperature.read more
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Hierarchically Engineered Manganite Thin Films with a Wide-Temperature-Range Colossal Magnetoresistance Response.
Shanshan Guo,Bao Wang Wang,Daniel Wolf,Axel Lubk,Weixing Xia,Ming Gang Wang,Junfeng Cui,D. Pravarthana,Zehua Dou,K. Leistner,Run-Wei Li,Ruben Hühne,Kornelius Nielsch +12 more
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Magnetic Circular Dichroism spectroscopy in epitaxial La0.7Sr0.3MnO3 thin films
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Changes of the local distortions and colossal magnetoresistive properties of La0.7Ca0.3MnO3 induced by Ti or Ga deffects
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TL;DR: The magnetoresistive properties of La 0.7 Ca 0.3 MnO 3 change rapidly when Ti or Ga is substituted on the Mn site for concentrations, x, from 1 to 10% as mentioned in this paper.
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Mean-field approach for the B phase of (La,Ca)MnO3
TL;DR: In this paper, a simple cubic lattice of mixed valent Mn ions (Mn4+ and Mn3+) is considered and the ground state energy for the ferromagnetic B phase using a slave-boson mean-field approach.
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