A bulk 2D Pauli Limited Superconductor

Abstract

We present a nearly perfect Pauli-limited critical field phase diagram for the anisotropic organic superconductor $α$-(ET)$_2$NH$_4$(SCN)$_4$whentheappliedmagneticfieldisorientedparalleltotheconductinglayers.Thecriticalfields(${H_{c_2}$)werefoundbyuseofpenetrationdepthmeasurements.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

References in corpus (4)

• Calorimetric Evidence for a Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in the Layered Organic Superconductor κ$-(BEDT-TTF)$_2$Cu(NCS)$_2$
• Superconducting properties and Fermi-surface topology of the quasi-two-dimensional organic superconductor $\lambda$-(BETS)${}_2$GaCl${}_4$
• Field-induced spin mixing in ultrathin superconducting Al and Be films in high parallel magnetic fields
• Upper critical field study in the organic superconductor ${\beta }^{\prime \prime }$-(ET)${}_2$SF${}_5$CH${}_2$CF${}_2$SO${}_3$ : Possibility of Fulde-Ferrell-Larkin-Ovchinnikov state

Cited by in corpus (6)

• Superconducting phase diagram and FFLO signature in $\lambda$-(BETS)${}_2$GaCl${}_4$ from rf penetration depth measurements
• An Experimental and Semi-Empirical Method to Determine the Pauli-Limiting Field in Quasi 2D Superconductors as applied to $\kappa$-(BEDT-TTF)${}_2$Cu(NCS)${}_2$: Strong Evidence of a FFLO State
• Superconductivity at 6 K and the violation of Pauli limit in Ta2PdxS5
• Calorimetric Measurements of Magnetic-Field-Induced Inhomogeneous Superconductivity Above The Paramagnetic Limit
• Two Dimensional Multigap Superconductivity in Bulk 2H-TaSSe
• Magnetic-field-induced 1st order transition to FFLO state at paramagnetic limit in 2D superconductors