EFFECTS OF SUPERCONDUCTIVITY ON ELASTIC-CONSTANTS OF LA2-XSRXCUO4

被引：4
|
作者：
NOHARA, M [1 ]
NISHIGORI, S [1 ]
SUZUKI, T [1 ]
MAENO, Y [1 ]
FUJITA, T [1 ]
TANAKA, I [1 ]
KOJIMA, H [1 ]
机构：
[1] YAMANASHI UNIV,INST INORGAN SYNTH,KOFU 400,JAPAN
来源：
PHYSICA B | 1994年 / 194卷
关键词：
D O I：
10.1016/0921-4526(94)91583-0
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Ultrasonic and specific-heat measurements have been performed across the superconducting transition on a single crystal of La1.86Sr0.14CuO4. A pronounced jump of the elastic constant DELTAC33(T(c)) = -0.15 GPa is observed at T(c) = 34 K as well as a specific-heat jump DELTAc(p)/T(c) = 9.6 mJ/K2mol, whereas a jump in C-11 is less obvious. The results allow quantitative estimation of the strain dependence of T(c) and the condensation energy along the a and c axes.
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收藏
页码：2167 / 2168
页数：2
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