Enhancement of the v=5/2 Fractional Quantum Hall State in a Small In-Plane Magnetic Field

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dc.citation.firstpage196805en_US
dc.citation.journalTitlePhysical Review Lettersen_US
dc.citation.volumeNumber108en_US
dc.contributor.authorLiu, Guangtongen_US
dc.contributor.authorZhang, Chien_US
dc.contributor.authorTsui, D.C.en_US
dc.contributor.authorKnez, Ivanen_US
dc.contributor.authorLevine, Aaronen_US
dc.contributor.authorDu, R.R.en_US
dc.contributor.authorPfeiffer, L.N.en_US
dc.contributor.authorWest, K.W.en_US
dc.date.accessioned2013-03-14T18:38:55Z
dc.date.available2013-03-14T18:38:55Z
dc.date.issued2012en_US
dc.description.abstractUsing a 50-nm-width ultraclean GaAs=AlGaAs quantum well, we have studied the Landau level filling factor v=5/2 fractional quantum Hall effect in a perpendicular magnetic field B 1:7 Tand determined its dependence on tilted magnetic fields. Contrary to all previous results, the 5=2 resistance minimum and the Hall plateau are found to strengthen continuously under an increasing tilt angle 0< <25 (corresponding to an in-plane magnetic field 0<Bk < 0:8 T). In the same range of , the activation gaps of both the 7=3 and the 8=3 states are found to increase with tilt. The 5=2 state transforms into a compressible Fermi liquid upon tilt angle >60 , and the composite fermion series [2 þ p=ð2p 1Þ, p ¼ 1; 2] can be identified. Based on our results, we discuss the relevance of a Skyrmion spin texture at v= 5/2 associated with small Zeeman energy in wide quantum wells, as proposed by Wo´js et alen_US
dc.embargo.termsnoneen_US
dc.identifier.citationLiu, Guangtong, Zhang, Chi, Tsui, D.C., et al.. "Enhancement of the v=5/2 Fractional Quantum Hall State in a Small In-Plane Magnetic Field." <i>Physical Review Letters,</i> 108, (2012) American Physical Society: 196805. http://dx.doi.org/10.1103/PhysRevLett.108.196805.
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.108.196805en_US
dc.identifier.urihttps://hdl.handle.net/1911/70629
dc.language.isoengen_US
dc.publisherAmerican Physical Society
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleEnhancement of the v=5/2 Fractional Quantum Hall State in a Small In-Plane Magnetic Fielden_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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