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Chinese Physics, 2004, Vol. 13(12): 2130-2135    DOI: 10.1088/1009-1963/13/12/027
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Low-temperature specific heat and resistance for the heavy-electron metals CeCu6-xMx (M=Ni,Zn)

Jiang Li-Xia (姜黎霞)a, Meng Ji-Bao (孟继宝)b, Xia Zhao-Yang (夏兆阳)a, Chen Zhao-Jia (陈兆甲)b, Luo Jian-Lin (雒建林)b, Wang Nan-Lin (王楠林)b
a Department of Basic Science, Beijing Union University, Beijing 100101, China; b Institute of Physics, Key Laboratory of Extreme Conditions Physics, Chinese Academy of Sciences, Beijing 100080, China
Abstract  The specific heat and resistance of CeCu$_{6-x}$M$_x$ ($M$=Ni,Zn) have been studied in the concentration range where they still retain the orthorhombic structure. The coefficient c of -ln T term in resistance $R=R_0+bT-c\ln T$, as well as the $\gamma$, have been found to vary in opposite directions with increasing $x$ for Ni and Zn substitutions. The physical mechanism is discussed.
Keywords:  heavy fermion system      low-temperature specific heat      low-temperature resistance  
Received:  09 May 2004      Revised:  20 August 2004      Accepted manuscript online: 
PACS:  71.27.+a (Strongly correlated electron systems; heavy fermions)  
  65.40.Ba (Heat capacity)  
  72.15.Qm (Scattering mechanisms and Kondo effect)  

Cite this article: 

Jiang Li-Xia (姜黎霞), Meng Ji-Bao (孟继宝), Xia Zhao-Yang (夏兆阳), Chen Zhao-Jia (陈兆甲), Luo Jian-Lin (雒建林), Wang Nan-Lin (王楠林) Low-temperature specific heat and resistance for the heavy-electron metals CeCu6-xMx (M=Ni,Zn) 2004 Chinese Physics 13 2130

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