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Comment on the paper by D. Efremov and Yu.N. Ovchinnikov "Singular ground state of multiband inhomogeneous superconductors", Phys. Rev. B 99, 224508 (2019)

Silaev, Mihail and Winyard, Thomas and Babaev, Egor (2019) Comment on the paper by D. Efremov and Yu.N. Ovchinnikov "Singular ground state of multiband inhomogeneous superconductors", Phys. Rev. B 99, 224508 (2019). Cornell University. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:90682)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL:
https://arxiv.org/abs/1908.08459v1

Abstract

We show that the conclusion reported in Ref. 1, that there are no spontaneous magnetic fields in multiband superconductors that break time reversal symmetry, is incorrect. We demonstrate that the state proposed in Ref. 1 is not a solution of the Ginzburg-Landau equations for the considered model. The reason is that in Ref. 1 one of the Ginzburg-Landau equations is neglected and substituted by the spurious zero current restriction. This restriction together with all of the Ginzburg-Landau equations leads to an overdetermined system which does not have a solution. This inconsistency invalidates all the results of the paper.

Item Type: Other
Subjects: Q Science > QC Physics > QC20 Mathematical Physics
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Mathematics, Statistics and Actuarial Science
Depositing User: Amy Boaler
Date Deposited: 07 Oct 2021 11:11 UTC
Last Modified: 07 Oct 2021 11:11 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/90682 (The current URI for this page, for reference purposes)

University of Kent Author Information

Winyard, Thomas.

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