Probing the spin states of three interacting electrons in quantum dots (Articolo in rivista)

Type
Label
  • Probing the spin states of three interacting electrons in quantum dots (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.85.033307 (literal)
Alternative label
  • Gamucci, A; Pellegrini, V; Singha, A; Pinczuk, A; Pfeiffer, LN; West, KW; Rontani, M (2012)
    Probing the spin states of three interacting electrons in quantum dots
    in Physical review. B, Condensed matter and materials physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Gamucci, A; Pellegrini, V; Singha, A; Pinczuk, A; Pfeiffer, LN; West, KW; Rontani, M (literal)
Pagina inizio
  • 033307 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 85 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
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  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Gamucci, Pellegrini: Consiglio Nazl Ric CNR NANO NEST Pisa, Ist Nanosci, I-56127 Pisa, Italy Gamucci, Pellegrini: Scuola Normale Super Pisa, I-56127 Pisa, Italy Singha: Bose Inst, Dept Phys, Calcutta 700009, India Pinczuk: Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA Pinczuk: Columbia Univ, Dept Phys, New York, NY 10027 USA Pfeiffer, West: Alcatel Lucent, Bell Labs, Murray Hill, NJ 07974 USA Pfeiffer, West: Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA Rontani: Consiglio Nazl Ric CNR NANO S3 Modena, Ist Nanosci, I-41125 Modena, Italy (literal)
Titolo
  • Probing the spin states of three interacting electrons in quantum dots (literal)
Abstract
  • We observe a low-lying sharp spin mode of three interacting electrons in an array of nanofabricated AlGaAs/GaAs quantum dots by means of resonant inelastic light scattering. The finding is enabled by a suppression of the inhomogeneous contribution to the excitation spectra obtained by reducing the number of optically probed quantum dots. Supported by configuration-interaction calculations we argue that the observed spin mode offers a direct probe of Stoner ferromagnetism in the simplest case of three interacting spin one-half fermions. (literal)
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