TEMPERATURE-DEPENDENCE OF PENETRATION DEPTH AND SURFACE-RESISTANCE OF ND1.85CE0.15CUO4

被引：235

作者：

WU, DH

MAO, J

MAO, SN

PENG, JL

XI, XX

VENKATESAN, T

GREENE, RL

ANLAGE, SM

机构：

[1] Center for Superconductivity Research, Department of Physics, University of Maryland, College Park

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.70.85

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The temperature dependence of the in-plane penetration depth lambda(parallel-to) and surface resistance R(s) at 9.6 GHz were measured for high-quality Nd1.85Ce0.15CuO4 thin films and single crystals. Both lambda(parallel-to)(T) and R(s)(T) are well described within the BCS framework over the entire temperature range below T(c), yielding an energy gap ratio 2DELTA/k(B)T(c) = 4.1 +/- 0.2 and the London penetration depth lambda(L parallel-to)(0) is similar to 1000 angstrom. These results indicate that the electrodynamics of this n-type cuprate superconductor are consistent with a single-gap s-wave BCS behavior.

引用

页码：85 / 88

页数：4

共 22 条

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