c-Axis penetration depth of Hg-1201 single crystals

被引：71
|
作者：
Kirtley, JR
Moler, KA
Villard, G
Maignan, A
机构：
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Heights, NY 10598 USA
[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA
[3] ISMRA, CRISMAT, F-14050 Caen, France
[4] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 10期
关键词：
D O I：
10.1103/PhysRevLett.81.2140
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have magnetically imaged interlayer Josephson vortices emerging from an ne face of single crystals of the singlelayer cuprate high-T-c superconductor (Hg, Cu)Ba2CuO4+delta. These images provide a direct measurement of the c-axis penetration depth, lambda(c) similar to 8 mu m. This length is a factor of 8 longer than predicted by the interlayer tunneling model for the mechanism of superconductivity in layered compounds, indicating that the condensation energy available through this mechanism is 50 times smaller than is required for superconductivity.
引用
收藏
页码：2140 / 2143
页数：4
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