Nodal Structure of Superconductors with Time-Reversal Invariance and Z2 Topological Number
| dc.creator | Sato, Masatoshi | |
| dc.date | 2006-02-19 | |
| dc.date.accessioned | 2026-07-07T08:02:09Z | |
| dc.date.available | 2026-07-07T08:02:09Z | |
| dc.description | A topological argument is presented for nodal structures of superconducting states with time-reversal invariance. A generic Hamiltonian which describes a quasiparticle in superconducting states with time-reversal invariance is derived, and it is shown that only line nodes are topologically stable in single-band descriptions of superconductivity. Using the time-reversal symmetry, we introduce a real structure and define topological numbers of line nodes. Stability of line nodes is ensured by conservation of the topological numbers. Line nodes in high-Tc materials, the polar state in p-wave paring and mixed singlet-triplet superconducting states are examined in detail. | |
| dc.description | 11 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0602445 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0602445 | |
| dc.identifier | Phys. Rev. B73, 214502 (2006) | |
| dc.identifier | doi:10.1103/PhysRevB.73.214502 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/129139 | |
| dc.subject | Superconductivity | |
| dc.title | Nodal Structure of Superconductors with Time-Reversal Invariance and Z2 Topological Number | |
| dc.type | text |