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Superconducting states for semi-Dirac fermions at zero and finite magnetic fields

Bruno Uchoa and Kangjun Seo
Phys. Rev. B 96, 220503(R) – Published 15 December 2017
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Abstract

We address the superconducting singlet state of anisotropic Dirac fermions that disperse linearly in one direction and parabolically in the other. For systems that have uniaxial anisotropy, we show that the electromagnetic response to an external magnetic flux is extremely anisotropic near the quantum critical point of the superconducting order. In the quantum critical regime and above a critical magnetic field, we show that the superconductor may form an exotic smectic state, with a stripe pattern of flux domains.

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  • Received 3 June 2017

DOI:https://doi.org/10.1103/PhysRevB.96.220503

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Bruno Uchoa* and Kangjun Seo

  • Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73069, USA

  • *uchoa@ou.edu

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Issue

Vol. 96, Iss. 22 — 1 December 2017

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