Josephson plasma resonance in the mixed state of the organic superconductor kappa-(BEDT-TTF)(2)Cu(NCS)(2)

被引：46

作者：

Shibauchi, T ^{[1
]}

Sato, M ^{[1
]}

Mashio, A ^{[1
]}

Tamegai, T ^{[1
]}

Mori, H ^{[1
]}

Tajima, S ^{[1
]}

Tanaka, S ^{[1
]}

机构：

[1] ISTEC,SUPERCONDUCT RES LAB,KOTO KU,TOKYO 135,JAPAN

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.55.R11977

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic-field dependence of microwave surface resistance measured using a cavity perturbation technique shows a peak structure below T-c in the organic layered superconductor kappa-(BEDT-TTF)(2)Cu(NCS)(2). It is observed only when E-omega is perpendicular to the superconducting layer and the peak field shows an anticyclotronic frequency dependence. All these observations suggest the excitation of Josephson plasma across the superconducting layers as the origin of the resonance. The interlayer phase correlation increases as the temperature is lowered even below the irreversibility line in contrast to the case of the Bi2Sr2CaCu2O8+y high-T-c superconductor.

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页码：11977 / 11980

页数：4

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