Wójs, Arkadiusz, Möller, Gunnar, Cooper, Nigel R (2011) Composite fermion dynamics in half-filled Landau levels of graphene. Acta Physica Polonica A, 119 . p. 592. ISSN 0587-4246. (doi:10.12693/APhysPolA.119.592) (KAR id:55551)
PDF
Pre-print
Language: English |
|
Download this file (PDF/160kB) |
Preview |
Request a format suitable for use with assistive technology e.g. a screenreader | |
Official URL: http://dx.doi.org/10.12693/APhysPolA.119.592 |
Abstract
We report on exact-diagonalization studies of correlated many-electron states in the half-filled Landau levels of graphene, including pseudospin (valley) degeneracy. We demonstrate that the polarized Fermi sea of non-interacting composite fermions remains stable against a pairing transition in the lowest two Landau levels. However, it undergoes spontaneous depolarization, which is unprotected owing to the lack of single-particle pseudospin splitting. These results suggest the absence of the Pfaffian phase in graphene.
Item Type: | Article |
---|---|
DOI/Identification number: | 10.12693/APhysPolA.119.592 |
Uncontrolled keywords: | Physics of Quantum Materials |
Subjects: | Q Science > QC Physics > QC173.45 Condensed Matter |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | Gunnar Moeller |
Date Deposited: | 05 Dec 2017 14:54 UTC |
Last Modified: | 16 Nov 2021 10:22 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/55551 (The current URI for this page, for reference purposes) |
- Link to SensusAccess
- Export to:
- RefWorks
- EPrints3 XML
- BibTeX
- CSV
- Depositors only (login required):