Millimeter-Wave Magneto-optical Determination of the Anisotropy of the Superconducting Order Parameter in the Molecular Superconductor κ- (BEDT−TTF)2Cu(NCS)2
J. M. Schrama, E. Rzepniewski, R. S. Edwards, J. Singleton, A. Ardavan, M. Kurmoo, P. Day
DOI 10.1103/PhysRevLett.83.3041 · Physical Review Letters
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Abstract
We have used a millimeter-wave magneto-optical technique to study the angle dependence of the high-frequency conductivity of the molecular superconductor κ−(BEDT−TTF)2Cu(NCS)2. The data strongly suggest that the superconducting gap has nodes directed along the b and c directions of the crystal, in agreement with recent theoretical predictions. This supports the idea that the superconductivity in κ−(BEDT−TTF)2Cu(NCS)2 is d wave in nature, and is mediated by spin fluctuations.
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. | 10.4 | Pressure not reported | onset |
| κ-(BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10.5 | Pressure not reported | unknown |
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