Suppression of the Aharonov-Bohm effect in hexagonal quantum rings (Articolo in rivista)

Type
Label
  • Suppression of the Aharonov-Bohm effect in hexagonal quantum rings (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1209/0295-5075/104/67004 (literal)
Alternative label
  • Ballester A.; Segarra C.; Bertoni A.; Planelles J. (2013)
    Suppression of the Aharonov-Bohm effect in hexagonal quantum rings
    in Europhysics letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ballester A.; Segarra C.; Bertoni A.; Planelles J. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/inward/record.url?eid=2-s2.0-84892648232&partnerID=q2rCbXpz (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 104 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Departament de Química Física i Analítica, Universitat Jaume i, Castelló de la Plana, Spain; Institute for Nanoscience, CNR NANO S3, I-41125 Modena, Italy (literal)
Titolo
  • Suppression of the Aharonov-Bohm effect in hexagonal quantum rings (literal)
Abstract
  • Few-electron states of AlAs-GaAs-AlAs hexagonal quantum rings pierced by an axial magnetic field are computed through full configuration interaction calculations. The quantum ring is in the low-density regime, populated with N = 1 up to N = 7 electrons. Similar to circular rings, the energy spectra of the hexagonal ones reflect an integer and fractional Aharonov-Bohm regular oscillation pattern for N = 1 and , respectively. Deviations from the regular fractional period with increasing electron density become apparent for larger N. Remarkably, for N = 6 the Aharonov-Bohm effect is completely suppressed. This is a unique symmetry-related feature of hexagonal rings that only can emerge in the low-density regime. © Copyright EPLA, 2013. (literal)
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