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Multicomponent Skyrmion lattices and their excitations

Abstract:

We study quantum Hall ferromagnets with a finite density of topologically charged spin textures in the presence of internal degrees of freedom such as spin, valley, or layer indices, so that the system is parametrized by a d -component spinor field. In the absence of anisotropies we find a hexagonal Skyrmion lattice that completely breaks the underlying SU(d) symmetry with the low-lying excitation spectrum separating into d2−1 gapless acoustic magnetic modes and a magnetophonon. The ground st...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1103/physrevlett.110.186802

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Atomic & Laser Physics
Douçot, B More by this author
Moessner, R More by this author
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review Letters Journal website
Volume:
110
Issue:
18
Pages:
ARTN 186802
Publication date:
2013-04-29
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:410872
URN:
uri:4e356c66-f223-483a-bbbb-dd979927297d
UUID:
uuid:4e356c66-f223-483a-bbbb-dd979927297d
Local pid:
pubs:410872
Language:
English
Keywords:

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