Coreless vortices as direct signature of chiral d-wave superconductivity

P. Holmvall; A. M. Black-Schaffer

doi:10.1103/PhysRevB.108.L100506

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Coreless vortices as direct signature of chiral d-wave superconductivity

P. Holmvall, A. M. Black-Schaffer

DOI 10.1103/PhysRevB.108.L100506 · Physical Review B

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Abstract

Chiral d-wave superconductivity has been proposed in a number of different materials, but characteristic experimental fingerprints have been largely lacking. We show that quadruply quantized coreless vortices are prone to form and offer distinctive signatures of the chiral d-wave state in both the local density of states and the total magnetic moment. Their dissimilarity in positive versus negative magnetic fields leads to additional spontaneous symmetry breaking, producing clear evidence of time-reversal symmetry breaking, chiral superconductivity, and the Chern number.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
SrPtAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
LaPt3P Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown