Control of superconducting pairing symmetries in monolayer black phosphorus

Mohammad Alidoust, Morten Willatzen, and Antti-Pekka Jauho
Phys. Rev. B 99, 125417 – Published 13 March 2019

Abstract

Motivated by recent experimental progress, we study the effect of mechanical deformations on the superconducting pairing symmetries in monolayer black phosphorus (MBP). Starting with phonon-mediated intervalley spin-singlet electron-electron pairing and making use of realistic band parameters obtained through first-principles calculations, we show that the application of weak mechanical strain in the plane of MBP can change the effective s-wave and p-wave symmetry of the superconducting correlations into effective d-wave and f-wave symmetries, respectively. This prediction of a change in the pairing symmetries might be experimentally confirmed through angular dependence high-resolution tunneling spectroscopy, the Meissner effect, and critical temperature experiments. The idea of manipulating the superconducting symmetry class by applying planar mechanical strain can be extended to other anisotropic materials as well and may help in providing important information of the symmetries of the order parameter, perhaps even in some high-Tc superconductors.

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  • Received 6 August 2018

DOI:https://doi.org/10.1103/PhysRevB.99.125417

©2019 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Mohammad Alidoust1, Morten Willatzen2,3, and Antti-Pekka Jauho4

  • 1Department of Physics, K. N. Toosi University of Technology, Tehran 15875-4416, Iran
  • 2Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Haidian District, Beijing 100083, China
  • 3Department of Photonics Engineering, Technical University of Denmark, Kongens Lyngby, DK-2800, Denmark
  • 4Center for Nanostructured Graphene (CNG), DTU Nanotech, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark

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Issue

Vol. 99, Iss. 12 — 15 March 2019

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