Strong-coupling corrections to hard domain walls in superfluid He3B

M. J. Rudd, P. Senarath Yapa, A. J. Shook, J. Maciejko, and J. P. Davis
Phys. Rev. B 104, 094520 – Published 22 September 2021

Abstract

Domain walls in superfluid He3B have gained renewed interest in light of experimental progress on confining helium in nanofabricated geometries. Here, we study the effect of strong-coupling corrections on domain wall width and interfacial tension by determining self-consistent solutions to spatially-dependent Ginzburg-Landau equations. We find that the formation of domain walls is generally energetically favored in strong coupling over weak coupling. Calculations were performed over a wide range of temperatures and pressures, showing decreasing interface energy with increasing temperature and pressure. This has implications for the observability of such domain walls in He3B, which are of both fundamental interest and form the basis for spatially-modulated pair-density wave states, when stabilized by strong confinement.

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  • Received 2 June 2021
  • Revised 9 August 2021
  • Accepted 3 September 2021

DOI:https://doi.org/10.1103/PhysRevB.104.094520

©2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

M. J. Rudd1, P. Senarath Yapa1, A. J. Shook1, J. Maciejko1,2,*, and J. P. Davis1,†

  • 1Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
  • 2Theoretical Physics Institute, University of Alberta, Edmonton, Alberta T6G 2E1, Canada

  • *maciejko@ualberta.ca
  • jdavis@ualberta.ca

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Issue

Vol. 104, Iss. 9 — 1 September 2021

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