A bulk 2D Pauli Limited Superconductor
arXiv:cond-mat/0303341 · doi:10.1103/PhysRevB.82.212502
Abstract
We present a nearly perfect Pauli-limited critical field phase diagram for the anisotropic organic superconductor \$α$-(ET)$_2$NH$_4$(SCN)$_4$ when the applied magnetic field is oriented parallel to the conducting layers. The critical fields (${H_{c_2}$) were found by use of penetration depth measurements. Because ${H_{c_2}$ is Pauli-limited, the size of the superconducting energy gap can be calculated. The role of spin-orbit scattering and many-body effects play a role in explaining our measurements.
4 pages, 5 figures. V5, corrections were made to the text, present data was included