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  • Letter
  • Open Access

Coreless vortices as direct signature of chiral d-wave superconductivity

P. Holmvall and A. M. Black-Schaffer

  • Department of Physics and Astronomy, Uppsala University, Box 516, S-751 20, Uppsala, Sweden

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Phys. Rev. B 108, L100506 – Published 15 September, 2023

DOI: https://doi.org/10.1103/PhysRevB.108.L100506

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.

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Robust and tunable coreless vortices and fractional vortices in chiral d-wave superconductors

P. Holmvall, N. Wall-Wennerdal, and A. M. Black-Schaffer
Phys. Rev. B 108, 094511 (2023)

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Phys. Rev. B 108, L100506– Published 15 September, 2023
  • Received 16 December 2022
  • Accepted 31 August 2023
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