Lian, Y., Rosch, A. and Goerbig, M. O. (2016). SU(4) Skyrmions in the nu = +/- 1 Quantum Hall State of Graphene. Phys. Rev. Lett., 117 (5). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

We explore different Skyrmion types in the lowest Landau level of graphene at a filling factor nu = +/- 1. In addition to the formation of spin and valley pseudospin Skyrmions, we show that another type of spin-valley entangled Skyrmions can be stabilized in graphene due to an approximate SU(4) spin-valley symmetry that is affected by sublattice symmetry-breaking terms. These Skyrmions have a clear signature in spin-resolved density measurements on the lattice scale, and we discuss the expected patterns for the different Skyrmion types.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Lian, Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rosch, A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goerbig, M. O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-269364
DOI: 10.1103/PhysRevLett.117.056806
Journal or Publication Title: Phys. Rev. Lett.
Volume: 117
Number: 5
Date: 2016
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 1079-7114
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
ELECTRONIC-PROPERTIES; COHERENCE; SYSTEMS; LATTICEMultiple languages
Physics, MultidisciplinaryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/26936

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