ION-CHANNELING ANOMALIES AT THE SUPERCONDUCTING TRANSITION-TEMPERATURE IN SINGLE-CRYSTAL YBA2CU3O7-Y

被引：62

作者：

HAGA, T ^{[1
]}

YAMAYA, K ^{[1
]}

ABE, Y ^{[1
]}

TAJIMA, Y ^{[1
]}

HIDAKA, Y ^{[1
]}

机构：

[1] NIPPON TELEGRAPH & TEL PUBL CORP, OPTOELECTR LABS, IBARAKI 31911, JAPAN

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.41.826

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature dependence of the Rutherford backscattering in the 001 axial channeling mode for each constituent atom of single-crystal YBa2Cu3O7-y has been carried out to study a change in the structural properties at the superconducting transition. Anomalies of channeling behavior observed across the superconducting transition temperature suggest a structural instability or a change in the lattice. The anomalies of channeling for Y and Ba atoms suggest the phonon softening, while those for Cu and O atoms are not explained in terms of only the phonon softening, but probably indicate complicated lattice dynamics of Cu and O atoms. © 1990 The American Physical Society.

引用

页码：826 / 829

页数：4

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