Quantitative Aspects of the Theory of Nearly Ferromagnetic Metals
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概要
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Effects of spin fluctuations on the magnetic susceptibility and the specific heat ofnearly ferromagnetic metals are discussed quantitatively within the long wavelengthapproximation, by using four parameters specifying the nature of spin fluctuations.The temperature dependence of the low temperature specific heat is discussed in detailwith particular reference to Ni.Ga and TiBe.. It is pointed out that the observedT' In 7'like behavior in TiBe. should not be attributed to the one derived previouslyfrom the long wave-length components of spin fluctuations. The specific heat due tolocalized paramagnons is also discussed and the T' In T like behavior is found in acertain temperature range around a characteristic temperature F/2n, T being thedamping constant of localized pararnagnons. The T' In T like behavior observed inUPt, seems to be explained primarily by this effect rather than the contribution ofsmall 7-components of spin fluctuations as postulated in previous analyses.
- 社団法人日本物理学会の論文
- 1987-09-15
著者
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KONNO Rikio
Institute for Solid State Physics, University of Tokyo
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Moriya Toru
Institute For Solid State Physics The University Of Tokyo
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Konno Rikio
Institute For Solid State Physics University Of Tokyo
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