Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in $La_{1-x}A_xMnO_3$

Details Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in $La_{1-x}A_xMnO_3$ Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in $La_{1-x}A_xMnO_3$

1995-07-20

arxiv.org/abs/cond-mat/9507084v2

Physics

Condensed Matter

11 pages. Latex. Minor revisions, including improvement of discussion of state with frozen-in lattice distortion. Figures (ava

Scientific paper

10.1103/PhysRevLett.77.175

A model for $La_{1-x}Sr_xMnO_3$ which incorporates the physics of dynamic
Jahn-Teller and double-exchange effects is presented and solved via a dynamical
mean field approximation. In an intermediate coupling regime the interplay of
these two effects is found to reproduce the behavior of the resistivity and
magnetic transition temperature observed in $La_{1-x} Sr_x MnO_3$.

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