Uniaxial stress study of the transport properties of the quasi-two-dimensional organic superconductor (BEDT-TTF)2Cu(NCS)2

Transverse and in-plane modification of superconductivity and electronic structure in the quasi-two dimensional organic conductor κ–(BEDT-TTF)2Cu(SCN)2 by uniaxial stress

We have employed uniaxial stress along the principal axes of the quasi-two dimensional organic superconductor κ–(BEDT-TTF)2Cu(SCN)2. The lattice anisotropy is thereby altered, with corresponding changes in the intermolecular transfer energies. The effect of uniaxial stress on the superconducting transition temperature Tc and critical field Bc2 is found to be anisotropic.There is an indication o...

Superconducting properties and Fermi-surface topology of the quasi-two-dimensional organic superconductor λ-(BETS)2GaCl4

The Fermi surface topology of the organic superconductor λ(BETS)2GaCl4 has been determined using the Shubnikov-de Haas and magnetic breakdown effects and angle-dependent magnetoresistance oscillations. The former experiments were carried out in pulsed fields of up to 60 T, whereas the latter employed quasistatic fields of up to 30 T. All of these data show that the Fermi-surface topology of λ-(...

Superconducting fluctuations and the reduced dimensionality of the organic superconductor k-„BEDT-TTF...2Cu„NCS...2 as observed through measurements of the de Haas–van Alphen effect

We report measurements of the de Haas–van Alphen ~DHVA! effect and ac susceptibility in the layered organic superconductor k-(BEDT-TTF)2Cu(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 ...

1 6 M ay 2 00 1 Observation of the Fulde - Ferrell - Larkin - Ovchinnikov state in the quasi - two - dimensional organic superconductor κ - ( BEDT - TTF ) 2 Cu ( NCS

Observation of the Fulde-Ferrell-Larkin-Ovchinnikov state in the quasi-two-dimensional organic superconductor κ-(BEDT-TTF) 2 Cu(NCS) 2. Abstract Single crystals of the layered organic type II superconductor, κ-(BEDT-TTF) 2 Cu(NCS) 2 , have been studied in magnetic fields of up to 33 T and at temperatures between 0.5 K and 11 K using a compact differential suscep-tometer. When the magnetic field...

Shubnikov-de Haas effect in the quantum vortex liquid state of the organic superconductor κ -(BEDT-TTF)2Cu(NCS)2