scispace - formally typeset
Open AccessJournal ArticleDOI

Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in La 1-x Sr x MnO 3

Andrew J. Millis, +2 more
- 01 Jul 1996 - 
- Vol. 77, Iss: 1, pp 175-178
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

Structural, elastic, and electronic properties of cubic perovskite BaHfO3 obtained from first principles

TL;DR: In this article, the structural, elastic, and electronic properties of cubic perovskite-type BaHfO3 using a first-principles method based on the plane-wave basis set were investigated.
Journal ArticleDOI

Ultrasonic anomalies in La0.67Ca0.33MnO3 near the Curie temperature

TL;DR: In this article, the ultrasonic velocity and attenuation were measured for both longitudinal and transverse waves in the single-phase polycrystalline colossal-magnetoresistance compound La0.67Ca0.33MnO3 near the Curie temperature Tc.
Journal ArticleDOI

Giant magnetoimpedance and colossal magnetoresistance in La0.75Sr0.25MnO3 at room temperature

TL;DR: In this paper, the impedance and reactance of manganite La 0.75Sr0.25MnO3 showed not only the colossal magnetoresistance effect but also the giant magneto-impedance effect.
Journal ArticleDOI

Structural, magnetic, infrared and Raman studies of La 0.8 Sr x Ca 0.2- x MnO 3 (0 ≤ x ≤ 0.2)

TL;DR: In this article, the results of magnetic, X-ray powder diffraction, infrared and temperature dependent Raman spectra of the La 0.8Sr 0.2 MnO3 perovskite were reported.
Journal ArticleDOI

Double metal–insulator peaks and effect of Sm3+ substitution on magnetic and transport properties of hole-doped La0.85Ag0.15MnO3

TL;DR: In this paper, the effect of Sm 3+ ion substitution on magnetic and electrical transport properties was investigated using solid-state synthesis of ceramics, and the results indicated that the substitution of sm 3+ ions weakened the double exchange process and enhanced the Jahn-Teller effect.
Related Papers (5)