OBSERVATION OF PHONON SOFTENING AT THE SUPERCONDUCTING TRANSITION IN BI2SR2CACU2O8

被引：80

作者：

MOOK, HA

MOSTOLLER, M

HARVEY, JA

HILL, NW

CHAKOUMAKOS, BC

SALES, BC

机构：

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.65.2712

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Resonant neutron-absorption spectroscopy has been used to determine the temperature dependence of the average kinetic energy E of the Cu in Bi2Sr2CaCu2O8 for the directions along and perpendicular to the c axis. E is directly related to the Cu phonon density of states and shows essentially normal behavior as a function of temperature for the c-axis direction. However, a sudden drop in E is observed at the superconducting transition for the motions in the Cu-O planes. © 1990 The American Physical Society.

引用

页码：2712 / 2715

页数：4

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