Ferromagnetic transition in a double-exchange system containing impurities in the Dynamical Mean Field Approximation
arXiv:cond-mat/0111491 · doi:10.1209/epl/i2002-00238-x
Abstract
We formulate the Dynamical Mean Field Approximation equations for the double-exchange system with quenched disorder for arbitrary relation between Hund exchange coupling and electron band width. Close to the ferromagnetic-paramagnetic transition point the DMFA equations can be reduced to the ordinary mean field equation of Curie-Weiss type. We solve the equation to find the transition temperature and present the magnetic phase diagram of the system.
5 pages, latex, 2 eps figures. We explicitely present the magnetic phase diagram of the system
References in corpus (3)
Cited by in corpus (9)
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