Scaling of the ''C-p proportional to TlnT'' dependence in Ce systems

被引:26
作者
Sereni, JG [1 ]
Geibel, C [1 ]
Berisso, MG [1 ]
Hellmann, P [1 ]
Trovarelli, O [1 ]
Steglich, F [1 ]
机构
[1] TH DARMSTADT,INST FESTKORPERPHYS,D-64289 DARMSTADT,GERMANY
来源
PHYSICA B | 1997年 / 230卷
关键词
specific heat; CeCu5.7Au0.3; CeT2X2;
D O I
10.1016/S0921-4526(97)81588-8
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We analyze the T ln T dependence of the specific heat (C-p) in several Ce binaries and ternaries. We find that these systems can be directly compared by using a scaling law of the type: C-p/t = -D log t + ET0, where t = T/T-0, with the scaling temperature T-0 similar to T-K, D = 7.2 J/(mol K) and 0 < E < 0.14 J/(mol K-2). This general function describes those systems within the 0.005 < t < 0.5 range and accounts for nearly 1/2 of the expected entropy of the Ce-doublet.
引用
收藏
页码:580 / 582
页数:3
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