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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:	Creators Email ORCID ORCID Put Code Lian, Y. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rosch, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Goerbig, M. O. UNSPECIFIED UNSPECIFIED UNSPECIFIED
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:	Keywords Language ELECTRONIC-PROPERTIES; COHERENCE; SYSTEMS; LATTICE Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/26936