Observation of the plasma resonance across the Josephson-coupled layers in the mixed state of organic superconductors

被引：7

作者：

Shibauchi, T

Sato, M

Tamegai, T

Mori, H

Tajima, S

Tanaka, S

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 113, Japan

[2] ISTEC, Superconduct Res Lab, Koto Ku, Tokyo 135, Japan

来源：

PHYSICA C | 1997年 / 293卷 / 1-4期

关键词：

D O I：

10.1016/S0921-4534(97)01517-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We observed Josephson plasma resonance in the superconducting organic salt kappa-(BEDT-TTF)(2)Cu(NCS)(2) by using a cavity perturbation method. Above the irreversibility line the temperature dependence of the resonance field H-p(T) can be explained by considering the interlayer phase correlation of decoupled pancake vortices. Similar resonance was observed at higher fields in the less anisotropic salt kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Br. In contrast to the case of Bi2Sr2CaCu2O8+y, the peak field increases as the temperature is lowered even below the irreversibility line for both salts. The difference of the vortex solid state between the high-T-c and organic superconductors is discussed. (C) 1997 Elsevier Science B.V.

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页码：73 / 76

页数：4

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