Monte Carlo determination of the phase diagram of the double-exchange model

Details Monte Carlo determination of the phase diagram of the double-exchange model Monte Carlo determination of the phase diagram of the double-exchange model

2001-01-25

arxiv.org/abs/cond-mat/0101390v1

Phys.Rev. B64 (2001) 54408

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 6 postscript figures

Scientific paper

10.1103/PhysRevB.64.054408

We study the phase diagram of the double exchange model, with antiferromagnetic interactions, in a cubic lattice both at zero and at finite temperature. There is a rich variety of magnetic phases, combined with regions where phase separation takes place. We identify phases, intrinsic to the cubic lattice, which are stable for realistic values of the interactions and dopings. Some of these phases break chiral symmetry, leading to unusual features.

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