Journal ArticleDOI
On the magnetization fluctuations in the completely disordered paramagnetic medium
S. Lipiński,H. Capellmann +1 more
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In this paper, the space extension of a single magnetization fluctuation in the disordered paramagnetic medium defined within the coherent potential approximation is discussed, and the thermodynamic potential functional for the subspace of nearly completely disordered configurations is derived.Abstract:
The space extension of a single magnetization fluctuation in the disordered paramagnetic medium defined within the coherent potential approximation is discussed. The thermodynamical potential functional for the subspace of nearly completely disordered configurations is derived.read more
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On the short range magnetic order of iron aboveT c
TL;DR: In this article, the ordering part of the free energy functional of a random CPA tight-binding paramagnetic effective medium has been derived based on an expansion about free energy of the CPA.
References
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Generalized perturbation theory in disordered transitional alloys: Applications to the calculation of ordering energies
François Ducastelle,F Gautier +1 more
TL;DR: In this paper, a generalized perturbation method for disordered alloys is proposed, where the unperturbed state is taken to be the completely disordered state treated in the coherent potential approximation, and explicit formulae are given for the variations of the electronic energy and of the densities of states induced by partial long and short-range orders.
Journal ArticleDOI
Local-band theory of itinerant ferromagnetism. I. Fermi-liquid theory
TL;DR: In this paper, a fluctuating-local-band theory was proposed, which generalizes the old localized-itinerant complementarity, and the range of validity of the theory was shown to extend well above the Curie temperature.
Journal ArticleDOI
Disordered local moment state of magnetic transition metals: a self-consistent KKR CPA calculation
TL;DR: In this paper, the authors performed self-consistent KKR CPA calculations for the disordered local moment (DLM) state of Fe, Co, Ni and Cr at different temperatures.
Journal ArticleDOI
Theory of scattering in solids
TL;DR: In this article, the scattering of an electron by an imperfection in a lattice is set up in terms of a linear combination of the Wannier functions associated with the lattice.
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