ELASTIC ANOMALIES IN A LA1.85SR0.15CUO4 SINGLE-CRYSTAL UNDER HIGH MAGNETIC-FIELDS

被引：9

作者：

HANAGURI, T ^{[1
]}

FUKASE, T ^{[1
]}

SUZUKI, T ^{[1
]}

TANAKA, I ^{[1
]}

KOJIMA, H ^{[1
]}

机构：

[1] YAMANASHI UNIV,INST INORGAN SYNTHESIS,KOFU,YAMANASHI 400,JAPAN

来源：

PHYSICA B | 1994年 / 194卷 / pt 2期

关键词：

D O I：

10.1016/0921-4526(94)91289-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Temperature dependence of the sound velocity V(s) in a La1.85Sr0.15CuO4 single crystal has been measured in the (c11-c12)/2 mode and in the c33 mode under high magnetic fields up to 23T. In the field above 6T, V(s) in the (c11-c12)/2 mode anomalously decreases with decreasing temperature, followed by the increase below about 10K. In the c33 mode, similar behavior of V(s) can be observed above 20T. Such a temperature dependence of V(s) may suggest the existence of a strain sensitive narrow band near the Fermi level or a phase transition related to the flux line lattice.

引用

页码：1579 / 1580

页数：2

共 5 条

[1] TIGHT-BINDING HAMILTONIANS FOR HIGH-TEMPERATURE SUPERCONDUCTORS AND APPLICATIONS TO COHERENT-POTENTIAL-APPROXIMATION CALCULATIONS OF THE ELECTRONIC-PROPERTIES OF LA2-XBAXCUO4-Y [J].