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Ground state of the three-dimensional BCS d-wave superconductor
- Source :
- Phys. Rev. B 100, 104503 (2019)
- Publication Year :
- 2019
-
Abstract
- We determine the mean-field ground state of the three-dimensional rotationally symmetric d-wave ($\ell=2$) superconductor at weak coupling. It is a non-inert state, invariant under the symmetry $C_{2}$ only, which breaks time reversal symmetry almost maximally, and features a high, but again less than maximal average magnetization. The state obtained by minimization of the expanded sixth-order Ginzburg--Landau free energy is found to be an excellent approximation to the true ground state. The coupling to a parasitic s-wave component has only a minuscule quantitative and no qualitative effect on the ground state.<br />Comment: 6 revtex pages; typos corrected, references updated and added, close to published version
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. B 100, 104503 (2019)
- Publication Type :
- Report
- Accession number :
- edsarx.1907.05015
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevB.100.104503