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
Citations
More filters
Journal ArticleDOI
Lattice dynamics in colossal magnetoresistance manganites
Byung Il Min,J.D. Lee,S. J. Youn +2 more
TL;DR: Based on the Hamiltonian of small polarons with strong electron-phonon interaction, the authors investigated anomalous behaviors of the sound velocity in colossal magnetoresistance (CMR) manganese oxides.
Journal ArticleDOI
Anisotropic modulation of magnetic properties and the memory effect in a wide-band (011)-Pr0.7Sr0.3MnO3/PMN-PT heterostructure.
Ying-Ying Zhao,Jing Wang,H. Kuang,Fengxia Hu,Yao Liu,Rong Rong Wu,Xixiang Zhang,Ji Rong Sun,Bao-gen Shen +8 more
TL;DR: A distinct memory effect of electric-field control of magnetic properties in wide-band (011)-Pr0.7Sr0.3MnO3 film at low temperatures is reported, which provides a promising approach for designing novel electric-writing magnetic memories.
Journal ArticleDOI
Effect of Ag substitution on structural, magnetic and magnetocaloric properties of Pr 0.6 Sr 0.4– x Ag x MnO 3 manganites
TL;DR: In this paper, the structural, magnetic and magnetocaloric properties of manganites were investigated and the magnetic field influence on both the magnetic entropy change and the relative cooling power was also studied and discussed.
Journal ArticleDOI
A combined DFT and post-DFT investigation on cubic XMoO3 (X = Sr, Ba) perovskite oxides
TL;DR: In this article, the structural, elasto-mechanical thermo-electronic and thermodynamic properties of XMoO3 (X = Sr, Ba) have been evaluated within different exchange correlation potentials.
Journal ArticleDOI
Phase separations in La 0.7-x Dy x Ca 0.3 Mn(Fe)O 3
TL;DR: In this paper, the phase splitting is due to different lattice distortions in one of the phases, Jahn-Teller distortion is significant, while in other phases, the distortion is not significant.