Spin quantum Hall transition in disordered superconductors
We study a delocalization transition for non-interacting quasiparticles moving in two dimensions, which belongs to a new symmetry class. This symmetry class can be realized in a dirty, gapless superconductor in which time-reversal symmetry for orbital motion is broken, but spin rotation symmetry is...
| Main Authors: | , , , |
|---|---|
| Format: | Conference item |
| Published: |
2001
|
| _version_ | 1826264751069462528 |
|---|---|
| author | Kagalovsky, V Horovitz, B Avishai, Y Chalker, J |
| author_facet | Kagalovsky, V Horovitz, B Avishai, Y Chalker, J |
| author_sort | Kagalovsky, V |
| collection | OXFORD |
| description | We study a delocalization transition for non-interacting quasiparticles moving in two dimensions, which belongs to a new symmetry class. This symmetry class can be realized in a dirty, gapless superconductor in which time-reversal symmetry for orbital motion is broken, but spin rotation symmetry is intact. We find a direct transition between two insulating phases with quantized Hall conductances of zero and two for the conserved quasiparticles. The energy of quasiparticles acts as a relevant, symmetry-breaking field at the critical point, which splits the direct transition into two conventional plateau transitions. (C) 2001 Elsevier Science B.V. All rights reserved. |
| first_indexed | 2024-03-06T20:12:52Z |
| format | Conference item |
| id | oxford-uuid:2b2d0da4-dafa-4493-8eef-e2418cd99ad0 |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:12:52Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:2b2d0da4-dafa-4493-8eef-e2418cd99ad02022-03-26T12:29:23ZSpin quantum Hall transition in disordered superconductorsConference itemhttp://purl.org/coar/resource_type/c_5794uuid:2b2d0da4-dafa-4493-8eef-e2418cd99ad0Symplectic Elements at Oxford2001Kagalovsky, VHorovitz, BAvishai, YChalker, JWe study a delocalization transition for non-interacting quasiparticles moving in two dimensions, which belongs to a new symmetry class. This symmetry class can be realized in a dirty, gapless superconductor in which time-reversal symmetry for orbital motion is broken, but spin rotation symmetry is intact. We find a direct transition between two insulating phases with quantized Hall conductances of zero and two for the conserved quasiparticles. The energy of quasiparticles acts as a relevant, symmetry-breaking field at the critical point, which splits the direct transition into two conventional plateau transitions. (C) 2001 Elsevier Science B.V. All rights reserved. |
| spellingShingle | Kagalovsky, V Horovitz, B Avishai, Y Chalker, J Spin quantum Hall transition in disordered superconductors |
| title | Spin quantum Hall transition in disordered superconductors |
| title_full | Spin quantum Hall transition in disordered superconductors |
| title_fullStr | Spin quantum Hall transition in disordered superconductors |
| title_full_unstemmed | Spin quantum Hall transition in disordered superconductors |
| title_short | Spin quantum Hall transition in disordered superconductors |
| title_sort | spin quantum hall transition in disordered superconductors |
| work_keys_str_mv | AT kagalovskyv spinquantumhalltransitionindisorderedsuperconductors AT horovitzb spinquantumhalltransitionindisorderedsuperconductors AT avishaiy spinquantumhalltransitionindisorderedsuperconductors AT chalkerj spinquantumhalltransitionindisorderedsuperconductors |