Superconducting fluctuations and the reduced dimensionality of the organic superconductor kappa-(BEDT-TTF)(2)Cu(NCS)(2) as observed through measurements of the de Haas-van Alphen effect

Article

关键词: UPPER CRITICAL-FIELD;    TEMPERATURE SPECIFIC-HEAT;    MIXED-STATE;    BEDT-TTF;    QUANTUM OSCILLATIONS;    ORDER-PARAMETER;    FERMI-SURFACE;    MAGNETIC OSCILLATIONS;    VORTEX LATTICE;    KAPPA-(BEDT-TTF)2CU(NCS)2;   

DOI  :  10.1103/PhysRevB.65.064515

来源: SCIE

【 摘 要 】

We report measurements of the de Haas-van Alphen (DHVA) effect and ac susceptibility in the layered organic superconductor kappa-(BEDT-TTF)(2)Cu(NCS)(2). The amplitude of the DHVA oscillations is attenuated over a wide field range above the irreversibility line, B-irr(B), below which a rigid flux lattice is formed. Thus the DHVA effect provides a unique probe of the superconducting fluctuations at high fields in this material. We compare our measurements with other measurements of the superconducting phase diagram of kappa-(BEDT-TTF)(2)Cu(NCS)(2)(-).

【 授权许可】

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