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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Structural Characterization and Magneto Electrical Behavior of Sm Doped La0.7Ca0.3MnO3 Manganites
TL;DR: The La07−xSmxCa03MnO3 with x=00 and 01 compounds were fabricated by compositional solid state reaction method and investigated for their structural and magnetoelectrical properties as mentioned in this paper.
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Mössbauer study of the relationship between magnetic properties and Jahn–Teller distortion in La1–xBax(Mn,Fe)O3 perovskites
TL;DR: The local structural distortion and its effect on the magnetic and magnetotransport properties of the Fedoped La1-xBaxMnO3 (0.00 ≤ x ≤ 0.35) compounds were investigated by means of X-ray diffraction, Mossbauer spectroscopy, and magnetization measurements as mentioned in this paper.
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Effect of phase separation induced supercooling on magnetotransport properties of epitaxial La5/8−yPryCa3/8MnO3 (y≈0.4) thin film
Sandeep Singh,Geetanjali Sharma,Mukesh Kumar Thakur,P. K. Siwach,Pawan Tyagi,K.K. Maurya,Singh H +6 more
TL;DR: In this article, the structural and surface characterizations confirm the epitaxial nature of thin films of La5/8−yPryCa3/8MnO3 (y≈0.4) by RF sputtering.
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The Kondo lattice model
TL;DR: In this paper, the ground state phases of the one-dimensional Kondo lattice are reviewed focusing on the antiferromagnetic coupling regime, and the Kondo model is used to describe the interaction between a band of conduction electrons and a lattice of localized magnetic moments.
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Ultrasonic velocity studies in the vicinity of T(C) of bismuth doped manganites.
G. Lalitha,P Venugopal Reddy +1 more
TL;DR: The ultrasonic longitudinal velocities of all the samples are found to exhibit considerable softening in the vicinity of their magnetic transition temperatures, and an effort has been made to explain the observed behaviour by mean field theory and the Jahn-Teller phenomenon.