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Skyrmions in the Moore-Read state at nu=5/2.

Abstract:

We study charged excitations of the non-Abelian Moore-Read liquid at a filling factor nu=5/2, allowing for spin depolarization. Using a combination of numerical studies, and taking account of nonzero well widths, we find that at a sufficiently low Zeeman energy it is energetically favorable for charge e/4 quasiholes to bind into Skyrmions of charge e/2. We show that Skyrmion formation is further promoted by disorder, and argue that this can lead to a depolarized nu=5/2 ground state in realist...

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
Physical Review Letters
Volume:
104
Issue:
8
Pages:
086801
Publication date:
2010-02-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Source identifiers:
158763
Language:
English
Pubs id:
pubs:158763
UUID:
uuid:32ab1eed-ba73-44cf-b64d-999b6eb9db91
Local pid:
pubs:158763
Deposit date:
2012-12-19

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