Phase separation and the segregation principle in the infinite-U spinless Falicov-Kimball model

Details Phase separation and the segregation principle in the infinite-U spinless Falicov-Kimball model Phase separation and the segregation principle in the infinite-U spinless Falicov-Kimball model

1999-01-26

arxiv.org/abs/cond-mat/9901289v1

Phys. Rev. B 60 1617--1626 (1999)

Physics

Condensed Matter

Strongly Correlated Electrons

19 pages and 10 figures

Scientific paper

10.1103/PhysRevB.60.1617

The simplest statistical-mechanical model of crystalline formation (or alloy formation) that includes electronic degrees of freedom is solved exactly in the limit of large spatial dimensions and infinite interaction strength. The solutions contain both second-order phase transitions and first-order phase transitions (that involve phase-separation or segregation) which are likely to illustrate the basic physics behind the static charge-stripe ordering in cuprate systems. In addition, we find the spinodal-decomposition temperature satisfies an approximate scaling law.

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