POLARIZATION-DEPENDENT EXAFS STUDY ON ANHARMONICITY IN YBA2CU3O7-DELTA

被引：10

作者：

YAMAZAKI, H ^{[1
]}

KIMURA, H ^{[1
]}

MAEDA, H ^{[1
]}

MARUYAMA, H ^{[1
]}

KOIZUMI, A ^{[1
]}

ISHII, T ^{[1
]}

机构：

[1] OKAYAMA UNIV,FAC ENGN,OKAYAMA 700,JAPAN

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91663-O

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The polarization-dependent EXAFS of the Cu K-edge has been measured on a uniaxially oriented YBa2Cu3O7-delta superconductor. Information on the axial and equatorial Cu-O bonds is separated by EXAFS analysis taking into account anharmonicity. An anomalous increase in the 2nd- and 4th- order cumulants has been found around T(c) both the components. The anharmonic lattice vibrations relating with the apical oxygen should correlate with the superconductivity.

引用

页码：879 / 880

页数：2

共 6 条

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