dc.identifier.uri |
http://dx.doi.org/10.15488/2857 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/2883 |
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dc.contributor.author |
Dethlefsen, Annelene F.
|
|
dc.contributor.author |
Haug, Rolf J.
|
|
dc.contributor.author |
Výborný, Karel
|
|
dc.contributor.author |
Čertík, Ondrej
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|
dc.contributor.author |
Wójs, Arkadiusz
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dc.date.accessioned |
2018-02-23T13:27:25Z |
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dc.date.available |
2018-02-23T13:27:25Z |
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dc.date.issued |
2006 |
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dc.identifier.citation |
Dethlefsen, A.F.; Haug, R.J.; Výborný, K.; Čertík, O.; Wójs, A.: Transport gap in a ν=1/3 quantum Hall system: A probe for skyrmions. In: Physical Review B 74 (2006), Nr. 19, 195324. DOI: https://doi.org/10.1103/PhysRevB.74.195324 |
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dc.description.abstract |
Transport measurements of the activation gap at fractional filling factor 1/3 are compared to results of exact diagonalization, allowing identification of a small anti-skyrmion as the lowest excitation in the low-field regime. In agreement with theory, a crossover to spinless excitations at higher electron densities is observed. Two samples of different quality are investigated. A detailed description of the theoretical calculation of activation gaps is presented and features which should be taken into account are summarized: finite thickness, Landau level mixing, and comparison between different sizes of the model system and-whenever possible-also between different geometries (torus and sphere). Within the chosen model of disorder (entailing a single fit parameter) we obtain a good agreement between calculated energies and experimental results. © 2006 The American Physical Society. |
eng |
dc.language.iso |
eng |
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dc.publisher |
College Park, MD : American Physical Society |
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dc.relation.ispartofseries |
Physical Review B 74 (2006), Nr. 19 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
|
dc.subject |
skyrmions |
eng |
dc.subject |
IQHE |
eng |
dc.subject.ddc |
530 | Physik
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ger |
dc.title |
Transport gap in a ν=1/3 quantum Hall system: A probe for skyrmions |
eng |
dc.type |
Article |
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dc.type |
Text |
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dc.relation.issn |
10980121 |
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dc.relation.doi |
https://doi.org/10.1103/PhysRevB.74.195324 |
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dc.bibliographicCitation.issue |
19 |
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dc.bibliographicCitation.volume |
74 |
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dc.bibliographicCitation.firstPage |
195324 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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