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Ferromagnetic transition in a double-exchange system

Mark Auslender·Eugene Kogan
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Abstract

We study ferromagnetic transition in three-dimensional double-exchange model. The influence of strong spin fluctuations on conduction electrons is described in coherent potential approximation. In the framework of thermodynamic approach we construct for the system "electrons (in a disordered spin configuration) + spins" the Landau functional, from the analysis of which critical temperature of ferromagnetic transition is calculated.

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Mark Auslender, Eugene Kogan. 2001-03-08. Ferromagnetic transition in a double-exchange system. https://doi.org/10.1103/physrevb.65.012408

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