Four-fold anisotropy of the parallel upper critical magnetic field in a pure layered d-wave superconductor at $T=0$

Abstract

It is well known that a four-fold symmetry of the parallel upper critical magnetic field disappears in the Ginzburg-Landau (GL) region in quasi-two-dimensional (Q2D) $d$-wave superconductors. Therefore, it has been accurately calculated so far as a correction to the GL results, which is valid close to superconducting transition temperature and is expected to be stronger at low temperatures. As to the case $T=0$, some approximated methods have been used, which are good only for closed electron orbits and unappropriate for the open orbits which exist in a parallel magnetic field in Q2D superconductors. For the first time, we accurately calculate the four-fold anisotropy of the parallel upper critical magnetic field in a pure Q2D $d$-wave superconductor at $T=0$, where it has the highest possible value. Our results are applicable to Q2D $d$-wave high-Tc and organic superconductors.

5 pages, 2 figeres

References in corpus (1)

• Layered superconductor in a magnetic field: breakdown of the effective masses model

Cited by in corpus (3)

• Orbital-Induced Crossover of the Fulde-Ferrell-Larkin-Ovchinnikov Phase into Abrikosov-like States
• Reentrant orbital effect against superconductivity in the quasi-two-dimensional superconductor NbS${}_2$
• A Chiral Triplet Quasi-Two-Dimensional Superconductor in a Parallel Magnetic Field