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Stability of spin droplets in realistic quantum Hall devices

Atci, H.; Erkarslan, U.; Siddiki, A.; Rasanen, E.


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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/14251</identifier>
  <creators>
    <creator>
      <creatorName>Atci, H.</creatorName>
      <givenName>H.</givenName>
      <familyName>Atci</familyName>
    </creator>
    <creator>
      <creatorName>Erkarslan, U.</creatorName>
      <givenName>U.</givenName>
      <familyName>Erkarslan</familyName>
      <affiliation>Mugla Univ, Fac Sci, Dept Phys, TR-48170 Kotekli Mugla, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Siddiki, A.</creatorName>
      <givenName>A.</givenName>
      <familyName>Siddiki</familyName>
      <affiliation>Istanbul Univ, Fac Sci, Dept Phys, TR-34134 Istanbul, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Rasanen, E.</creatorName>
      <givenName>E.</givenName>
      <familyName>Rasanen</familyName>
    </creator>
  </creators>
  <titles>
    <title>Stability Of Spin Droplets In Realistic Quantum Hall Devices</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2013</publicationYear>
  <dates>
    <date dateType="Issued">2013-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/14251</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1088/0953-8984/25/15/155604</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">We study the formation and characteristics of 'spin droplets', i.e. compact spin-polarized configurations in the highest occupied Landau level, in an etched quantum Hall device at filling factors 2 &amp;lt;= nu &amp;lt;= 3. The confining potential for electrons is obtained with self-consistent electrostatic calculations on a GaAs/AlGaAs heterostructure with experimental system parameters. Real-space spin-density-functional calculations for electrons confined in the obtained potential show the appearance of stable spin droplets at nu similar to 5/2. The qualitative features of the spin droplet are similar to those in idealized (parabolic) quantum-dot systems. The universal stability of the state against geometric deformations underlines the applicability of spin droplets in, for example, spin-transport through quantum point contacts.</description>
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