Sweeping of Lattice Disorder and Associated Phenomena in Colossal Magnetoresistance Compounds

Details Sweeping of Lattice Disorder and Associated Phenomena in Colossal Magnetoresistance Compounds Sweeping of Lattice Disorder and Associated Phenomena in Colossal Magnetoresistance Compounds

2001-10-02

arxiv.org/abs/cond-mat/0110047v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures (in color)

Scientific paper

We show through a variational calculation that in a large range of parameters the paramagnetic to ferromagnetic transition in colossal magnetoresistance compounds is accompanied by a collapse of polaronic lattice disorder in addition to that of spin disorder. The spin-lattice disordered state is shown to be localized and the ordered state itinerant as observed. The observed dramatic change in the diffuse scattering at the transition as well as the isotope effect are also explained.

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