Time-reversal symmetry-breaking superconductivity

Haranath Ghosh

doi:10.1103/PhysRevB.59.3357

← Back to search

Time-reversal symmetry-breaking superconductivity

Haranath Ghosh

DOI 10.1103/PhysRevB.59.3357 · 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

We study time-reversal symmetry-breaking superconductivity with Δk=Δx2−y2(k)+eiθΔα(α=s or dxy) symmetries. It is shown that the behavior of such superconductors could be qualitatively different depending on the minor component (α) and its phase at lower temperatures. It is argued that such qualitatively different behaviors in thermal as well as in angular dependences could be a source of consequences in transport and Josephson physics. Orthorhombicity is found to be a strong mechanism for the mixed phase (in the case of α=s). We show that due to electron correlation the order parameter is more like a pure dx2−y2 symmetry near optimum doping.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCuO8-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown