Journal ArticleDOI
Dynamical susceptibilities in itinerant antiferromagnetic alloys
Seiju Ami,W. Young +1 more
TLDR
In this paper, the authors derived the dynamical susceptibilities for all temperatures within a one-band Hubbard model in the presence of dilute random impurities within the random phase approximation.Abstract:
The dynamical susceptibilities are derived for all temperatures within a one-band Hubbard model in the presence of dilute random impurities within the random phase approximation. Explicit expressions are obtained for the transverse susceptibility, spin-wave velocity and damping for T=0. The spin-wave velocity decreases linearly at first and then drastically at higher concentrations.read more
Citations
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On spin waves and spin disorder in face-centred-cubic Mn73Ni27
R. D. Lowde,G. L. Tindle +1 more
TL;DR: In this paper, the authors measured the magnetic susceptibility Im χ ⊥ ( q, ω ) at room temperature along the -axis of a single crystal of face-centred-cubic Mn 73 Ni 27 whose elastic, magnetic and crystallographic characteristics have also been examined.
References
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Journal ArticleDOI
Electron correlations in narrow energy bands
TL;DR: In this paper, the Hartree-Fock approximation of the correlation problem for the d-and f-bands was applied to a simple, approximate model for the interaction of electrons in narrow energy bands.
Journal ArticleDOI
A new method for the evaluation of electric conductivity in metals
TL;DR: In this article, a method is developed which allows the evaluation of the closed formal expressions for electrical conductivity which have recently been developed by several authors, and a brief mention of the application of this method to liquids and alloys is made.
Journal ArticleDOI
Band Theory of Antiferromagnetism in 3d f.c.c. Transition Metals
Setsuro Asano,Jiro Yamashita +1 more
TL;DR: In this article, the band structure of both paramagnetic and antiferromagnetic γMn is evaluated by G.F.M. with the Slater exchange approximation, and the gap mechanism similar to Cr is found to be effective around N ≈7.3.
Journal ArticleDOI
Spin Density Wave in Chromium and Its Alloys
Journal ArticleDOI
Transport Properties of the "Excitonic Insulator": Electrical Conductivity
TL;DR: In this paper, the dc conductivity of the excitonic insulator is calculated in the semimetallic region and it is shown that the conductivity decreases below the transition temperature to the excitic state for low impurity concentrations.
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