Universal phase diagrams for the quantum spin Hall systems
| dc.creator | Murakami, Shuichi | |
| dc.creator | Kuga, Shun-ichi | |
| dc.date | 2008-06-20 | |
| dc.date | 2008-10-08 | |
| dc.date.accessioned | 2026-07-07T10:09:19Z | |
| dc.date.available | 2026-07-07T10:09:19Z | |
| dc.description | We describe how the three-dimensional quantum spin Hall phase arises from the insulator phase by changing an external parameter. In 3D systems without inversion symmetry, a gapless phase should appear between the two phases with a bulk gap. The gapless points are monopoles and antimonopoles (in k space), whose topological nature is the source of this gapless phase. In general, when the external parameter is changed from the ordinary insulator phase, two monopole-antimonopole pairs are created and the system becomes gapless. The gap-closing points (monopoles and antimonopoles) then move in the k space as the parameter is changed further. They eventually annihilate in pairs, with changing partners from the pair creations, and the system opens a gap again, entering into the quantum spin Hall phase. | |
| dc.description | 10 pages, 8 figures, minor changes, to be published in Phys. Rev. B | |
| dc.identifier | https://arxiv.org/abs/0806.3309 | |
| dc.identifier | http://arxiv.org/abs/0806.3309 | |
| dc.identifier | Phys. Rev. B 78, 165313 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.78.165313 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/171282 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Universal phase diagrams for the quantum spin Hall systems | |
| dc.type | text |