Spin fluctuations induced by f–d exchange in R₃T compounds

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• 作者：Baranov ; N.V. ; Hilscher ; G. ; Markin ; P.E. ; Michor ; H. ; Yermakov ; A.A.
• 关键词：72.15.&minus ; v ; 75.40.&minus ; s ; 75.50.&minus ; y ; Rare earth compounds ; Spin fluctuations ; Specific heat ; Electrical resistivity
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2004
• 期刊代码：31_03048853
• 类别：ph
• 出版时间：May, 2004
• 卷：272-276
• 期：Part 1
• 页码：637-638
• 文件大小：231 K

摘要

The giant enhancement of the coefficient γ of the T-linear specific heat, retention of the magnetic contribution to the total specific heat above the ordering temperature and anomalous behavior of the temperature dependencies of the electrical resistivity in the paramagnetic region have been revealed by specific heat and electrical resistivity measurements for some R₃M (M=Co, Ni, Rh). Such a behavior is associated with the presence of a huge contribution from spin fluctuations induced by the f–d exchange in the itinerant d-electron subsystem.