Finite-Temperature Magnetism of Concentrated Ferromagnetic Alloys
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概要
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A spin fluctuation theory developed previously by the present author usingthe functional integral method is generalized to discuss the finite-temperatureproperties of concentrated ferromagnetic binary alloys, A,B.=.. We study theconcentration- and temr>erature-derendences of various ctuantities such as theaverage magnetic moment, the local magnetic moment relevant to each con-stituent atom, the total spin susceptibility and partial susceptibilities of A and Batoms. It is shown that the theory in the limit of 7'=0 K reduces to that proposedby Hasegawa and I(anamori, and that the defect inherent in the one-electrontheory of magnetic alloys is removed by including the effect of spin fluctuati'ns.Numerical calculations are carried out for FeCr alloys.
- 社団法人日本物理学会の論文
- 1981-03-15
著者
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Hasegawa Hideo
Institute For Solid State Physics University Of Tokyo
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Hasegawa Hideo
Institute For Solid State Physics University Of Tokyo:department Of Mathematics Imperial College
関連論文
- Effect of Spin Fluctuations on Itineraut Electron Antiferromagnetism
- Frequency-Dependent Electrical Conductivity of Nearly and Weakly Ferromagnetic Metals : Deviations from Drude's Formula
- Single-Siet Spin Fluctuation Theory of Itinerant-Electron Systems with Narrow Bands
- Effect of Antiferromagnetic Spin Fluctuations on Superconductivity
- Finite-Temperature Magnetism of Concentrated Ferromagnetic Alloys
- Specific Heat Due to Spin Fluctuations in Nearly and Weakly Antiferromagnetic Metals
- Single-Site Spin Fluctuation Theory of Itinerant-Electron Systems with Narrow Bands. II. Iron and Nickel
- A Unified Theory of Magnetism in Narrow Band Electron Systems
- Spin Fluctuations in Concentrated Ferromagnetic Alloys
- Paramagnon Effect on the Nuclear Spin-Lattice Relaxation in Type-I Superconductors
- Single-Site Functional-Integral Approach to Itinerant-Electron Ferromagnetism