PRECISION-MEASUREMENTS OF THE TEMPERATURE-DEPENDENCE OF LAMBDA IN YBA2CU3O6.95 - STRONG EVIDENCE FOR NODES IN THE GAP FUNCTION

被引：1020

作者：

HARDY, WN

BONN, DA

MORGAN, DC

LIANG, RX

ZHANG, K

机构：

[1] Department of Physics, University of British Columbia, Vancouver

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.70.3999

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A miniature superconducting resonator operating at 1.3 K and 900 MHz has been used to measure the change in lambda(T) from 1.3 K to T(c) in very high quality single crystals of YBa2Cu3O6.95. The data, which have a resolution of 1-2 angstrom, show a strong linear term extending from approximately 3 to 25 K. We believe the strong linear dependence to be characteristic of the pure system and that its apparent absence in thin films and some crystals is due to the presence of defects.

引用

页码：3999 / 4002

页数：4

共 24 条

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