Excitation of the Josephson plasma mode in Bi2Sr2CaCu2O8+delta in an oblique field

被引：92

作者：

Tsui, OKC ^{[1
]}

Ong, NP ^{[1
]}

Peterson, JB ^{[1
]}

机构：

[1] CARNEGIE MELLON UNIV,DEPT PHYS,PITTSBURGH,PA 15213

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.76.819

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present evidence identifying the resonance in microwave absorption observed in Bi2Sr2CaCu2O8+delta in a field H as the Josephson plasma mode. The resonance field displays an unusual reentrant cusp when H is very close to alignment with the layers. By fitting to a model of Bulaevskii et al., we obtain an anisotropy parameter gamma = 400-420 at 5 K, and a Josephson plasma frequency omega(j) equal to 5.3 cm(-1) (at H = 0). We also describe the dependence of omega(j) on H and T when the applied field H parallel to c.

引用

页码：819 / 822

页数：4

共 23 条

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