MEASUREMENT OF THE AB PLANE ANISOTROPY OF MICROWAVE SURFACE IMPEDANCE OF UNTWINNED YBA2CU3O6.95 SINGLE-CRYSTALS

被引：176

作者：

ZHANG, K ^{[1
]}

BONN, DA ^{[1
]}

KAMAL, S ^{[1
]}

LIANG, RX ^{[1
]}

BAAR, DJ ^{[1
]}

HARDY, WN ^{[1
]}

BASOV, D ^{[1
]}

TIMUSK, T ^{[1
]}

机构：

[1] MCMASTER UNIV,DEPT PHYS & ASTRON,HAMILTON L8S 4M1,ON,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.73.2484

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The temperature dependence of the surface resistance R(s) and the penetration depth lambda has been measured in both a and b directions in Yba(2)Cu(3)O(6.95). The overall temperature dependences are similar and show a linear behavior at low T. This argues against the chains playing a direct role in the unconventional behavior of the surface impedance. The residual R(s) of these twin-free crystals is very small, implying a residual conductivity of the order of the minimum value predicted by Lee [Phys. Rev. Lett. 71, 1887 (1993)] for a d-wave superconductor.

引用

页码：2484 / 2487

页数：4

共 22 条

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