Shubnikov–de Haas effect in the superconducting state of an organic superconductor

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

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 ...

Shubnikov - de Haas oscillations, weak antilocalization effect and large linear magnetoresistance in the putative topological superconductor LuPdBi

We present electronic transport and magnetic properties of single crystals of semimetallic half-Heusler phase LuPdBi, having theoretically predicted band inversion requisite for nontrivial topological properties. The compound exhibits superconductivity below a critical temperature Tc = 1.8 K, with a zero-temperature upper critical field Bc2 ≈ 2.3 T. Although superconducting state is clearly ref...

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-(...

Anomalous low-temperature and high-field magnetoresistance in the organic superconductor b9-„BEDT-TTF...2SF5CH2CF2SO3

We report direct observations of anomalous magnetic-field and temperature dependences of the Shubnikov–de Haas oscillations in the organic superconductor b9-(BEDT-TTF)2SF5CH2CF2SO3. Unlike other BEDT-TTF based organic superconductors, a nonmetallic temperature dependence of the background magnetoresistance is clearly observed. It is speculated that the nonmetallic behavior may arise from a part...