Pomeranchuk instabilities in multicomponent lattice systems at finite Temperature

Details Pomeranchuk instabilities in multicomponent lattice systems at finite Temperature Pomeranchuk instabilities in multicomponent lattice systems at finite Temperature

2010-08-24

arxiv.org/abs/1008.4155v2

International Journal of Modern Physics B 25, 3539 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

Revised version to be published in Modern Physics Letters

Scientific paper

10.1142/S0217979211102046

In the present paper we extend the method to detect Pomeranchuk instabilities in lattice systems developed in previous works to study more general situations. The main result presented here is the extension of the method to include finite temperature effects, which allows to compute critical temperatures as a function of interaction strengths and density of carriers. Furthermore, it can be applied to multiband problems which would be relevant to study systems with spin/color degrees of freedom. Altogether, the present extended version provides a potentially powerful technique to investigate microscopic realistic models relevant to e.g. the Fermi liquid to nematic transition extensively studied in connection with different materials such as cuprates, ruthenates, etc.

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