COUPLING BETWEEN SUPERCONDUCTIVITY AND STRUCTURAL DEFORMATION IN LA2-XSRXCUO4 (X-SIMILAR-TO-0.13)

被引：38

作者：

BRADEN, M

HOFFELS, O

SCHNELLE, W

BUCHNER, B

HEGER, G

HENNION, B

TANAKA, I

KOJIMA, H

机构：

[1] UNIV COLOGNE,INST PHYS 2,W-5000 COLOGNE 41,GERMANY

[2] YAMANASHI UNIV,INST INORGAN SYNTH,KOFU 4000,JAPAN

来源：

PHYSICAL REVIEW B | 1993年 / 47卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.47.12288

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Capacitance-dilatometer measurements of the anisotropic thermal expansion on a superconducting single crystal of La2-xSrxCuO4 (x approximately 0.13) show large anomalies at the structural transition from the high-temperature tetragonal to the low-temperature orthorhombic phase followed by smaller anomalies of the opposite sign at the superconducting phase transition. Neutron-diffraction experiments on the same crystal indicate that at T(c) the tilt of the CuO6 octahedra related to the structural phase transition is frozen in.

引用

页码：12288 / 12291

页数：4

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