Superconducting phase transition of Sr2RuO4 in a magnetic field

V. P. Mineev

doi:10.1103/PhysRevB.89.134519

← Back to search

Superconducting phase transition of Sr2RuO4 in a magnetic field

V. P. Mineev

DOI 10.1103/PhysRevB.89.134519 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

The superconducting state formed due to direct intraorbital pairing in the tetragonal multiband superconductor Sr2RuO4 has different properties than the state formed due to intraband pairing. In particular, the theory operating with direct intraorbital pairing successfully explains the Kerr rotation of reflected light polarization observed several years ago. Here we apply the intraorbital approach to the problem of the Ginzburg-Landau description of the basal plane upper critical field in this material. It is shown that typically for the two-component superconducting state, additional phase transitions in the vortex state at H<Hc2 for all four crystallographic directions of magnetic field in the basal plane and the basal plane upper critical field anisotropy still are inevitable properties, even in case of direct intraorbital pairing.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown