Has the FFLO state been observed in the organic superconductor $\kappa -$(BEDT-TTF${)}_2$Cu(NCS${)}_2$ ?

Sherryl Manalo, Ulf Klein

We compare the theoretical anisotropic upper critical field $H_C(\Theta ,T)$ of a quasi-two-dimensional d-wave superconductor with recent $H_{c2}$ data for the layered organic supercon…