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Skyrmions in the Moore-Read state at nu=5/2 by Wojs, Arkadiusz; Moller, Gunnar; Simon, Steven H.; Cooper, Nigel R. is a scholarly article available to read on EtoBox.

What is Skyrmions in the Moore-Read state at nu=5/2 about?

We study charged excitations of the non-abelian Moore-Read liquid at filling factor nu=5/2, allowing for spin depolarization. Using a combination of numerical studies, and taking account of non-zero well widths, we find that at sufficiently low Zeeman energy it is energetically favourable 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 realistic experimental situations. We comment on the consequences for the activated transport.

Author

Wojs, Arkadiusz; Moller, Gunnar; Simon, Steven H.; Cooper, Nigel R.

Published

2009

Language

EN