Kondo effect in La1-xCex alloys under pressure

被引:35
作者
Kim, K. S. [1 ]
Maple, M. B. [1 ]
机构
[1] Univ Calif San Diego, Inst Pure & Appl Phys Sci, La Jolla, CA 92037 USA
来源
PHYSICAL REVIEW B-SOLID STATE | 1970年 / 2卷 / 11期
关键词
D O I
10.1103/PhysRevB.2.4696
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The low-temperature electrical resistance of La1-xCex alloys in both the fcc and the dhcp phase has been measured under pressure. Between normal pressure and 19 kbar the resistance always exhibited a minimum at T-min, which initially increased slightly under pressure, but remained constant above 7 kbar. The resistance R(T) for T<T-min varied as lnT down to the superconducting transition temperature T-c or the limiting measuring temperature (1.3 degrees K). The slope, -dR(T)/d InT, varied appreciably and nonmonotonically with pressure; the relationship between the depression of T-c and -dR(T)/d InT as a function of pressure is discussed.
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页码:4696 / 4699
页数:4
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