Chiral superconductivity in nematic states

Shuhei Takamatsu; Youichi Yanase

doi:10.1103/PhysRevB.91.054504

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Chiral superconductivity in nematic states

Shuhei Takamatsu, Youichi Yanase

DOI 10.1103/PhysRevB.91.054504 · Physical Review B

T1

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Abstract

We investigate chiral superconductivity which occurs in the electronic nematic state. A vortex state in a c−axis magnetic field is studied on the basis of the two-component Ginzburg-Landau model for nematic-chiral superconductors. It is shown that various vortex lattice structures are stabilized by nontrivial cooperation of nematicity and chirality in superconductors. In particular, the vortex lattice structural transition occurs when a square anisotropy parameter ν is positive (negative) and the nematicity is induced along the [110] axis ([100] axis). We discuss nematic-chiral superconductivity in URu2Si2, Sr2RuO4, and UPt3. An experimental test for the examination of nematic order and chiral superconductivity is proposed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
UPt3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Sr3Ru2O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown