Josephson plasma resonance in the mixed state of the organic superconductor κ-(BEDT-TTF)2Cu(NCS)2
T. Shibauchi, M. Sato, A. Mashio, T. Tamegai, H. Mori, S. Tajima, S. Tanaka
DOI 10.1103/PhysRevB.55.R11977 · Physical Review B
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Abstract
Magnetic-field dependence of microwave surface resistance measured using a cavity perturbation technique shows a peak structure below Tc in the organic layered superconductor κ-(BEDT-TTF)2Cu(NCS)2. It is observed only when Eω 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-Tc superconductor.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| κ-(BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8+y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2Sr2La2CuOy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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