Time-reversal and rotation symmetry breaking superconductivity in Dirac materials
We consider mixed symmetry superconducting phases in Dirac materials in the odd-parity channel, where pseudoscalar and vector order parameters can coexist due to their similar critical temperatures when attractive interactions are of a finite range. We show that the coupling of these order parameter...
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| Format: | Journal article |
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American Physical Society
2017
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| _version_ | 1826269886793383936 |
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| author | Chirolli, L de Juan Sanz, F Guinea, F |
| author_facet | Chirolli, L de Juan Sanz, F Guinea, F |
| author_sort | Chirolli, L |
| collection | OXFORD |
| description | We consider mixed symmetry superconducting phases in Dirac materials in the odd-parity channel, where pseudoscalar and vector order parameters can coexist due to their similar critical temperatures when attractive interactions are of a finite range. We show that the coupling of these order parameters to unordered magnetic dopants favors the condensation of time-reversal symmetry breaking (TRSB) phases, characterized by a condensate magnetization, rotation symmetry breaking, and simultaneous ordering of the dopant moments. We find a rich phase diagram of mixed TRSB phases characterized by peculiar bulk quasiparticles, with Weyl nodes and nodal lines, and distinctive surface states. These findings are consistent with recent experiments on NbxBi2Se3 that report evidence of point nodes, nematicity, and TRSB superconductivity induced by Nb magnetic moments. |
| first_indexed | 2024-03-06T21:32:13Z |
| format | Journal article |
| id | oxford-uuid:450c197b-3598-4fb4-acf2-51a05d74179f |
| institution | University of Oxford |
| last_indexed | 2024-03-06T21:32:13Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:450c197b-3598-4fb4-acf2-51a05d74179f2022-03-26T15:05:27ZTime-reversal and rotation symmetry breaking superconductivity in Dirac materialsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:450c197b-3598-4fb4-acf2-51a05d74179fSymplectic Elements at OxfordAmerican Physical Society2017Chirolli, Lde Juan Sanz, FGuinea, FWe consider mixed symmetry superconducting phases in Dirac materials in the odd-parity channel, where pseudoscalar and vector order parameters can coexist due to their similar critical temperatures when attractive interactions are of a finite range. We show that the coupling of these order parameters to unordered magnetic dopants favors the condensation of time-reversal symmetry breaking (TRSB) phases, characterized by a condensate magnetization, rotation symmetry breaking, and simultaneous ordering of the dopant moments. We find a rich phase diagram of mixed TRSB phases characterized by peculiar bulk quasiparticles, with Weyl nodes and nodal lines, and distinctive surface states. These findings are consistent with recent experiments on NbxBi2Se3 that report evidence of point nodes, nematicity, and TRSB superconductivity induced by Nb magnetic moments. |
| spellingShingle | Chirolli, L de Juan Sanz, F Guinea, F Time-reversal and rotation symmetry breaking superconductivity in Dirac materials |
| title | Time-reversal and rotation symmetry breaking superconductivity in Dirac materials |
| title_full | Time-reversal and rotation symmetry breaking superconductivity in Dirac materials |
| title_fullStr | Time-reversal and rotation symmetry breaking superconductivity in Dirac materials |
| title_full_unstemmed | Time-reversal and rotation symmetry breaking superconductivity in Dirac materials |
| title_short | Time-reversal and rotation symmetry breaking superconductivity in Dirac materials |
| title_sort | time reversal and rotation symmetry breaking superconductivity in dirac materials |
| work_keys_str_mv | AT chirollil timereversalandrotationsymmetrybreakingsuperconductivityindiracmaterials AT dejuansanzf timereversalandrotationsymmetrybreakingsuperconductivityindiracmaterials AT guineaf timereversalandrotationsymmetrybreakingsuperconductivityindiracmaterials |