Singlet-triplet transition in a few-electron lateral In0.75Ga0.25As/In0.75Al0.25As quantum dot (Articolo in rivista)

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Label
  • Singlet-triplet transition in a few-electron lateral In0.75Ga0.25As/In0.75Al0.25As quantum dot (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Deon F., Pellegrini V., Carillo F., Giazotto F., Biasiol G., Sorba L. and Beltram F. (2010)
    Singlet-triplet transition in a few-electron lateral In0.75Ga0.25As/In0.75Al0.25As quantum dot
    in Applied physics letters
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Deon F., Pellegrini V., Carillo F., Giazotto F., Biasiol G., Sorba L. and Beltram F. (literal)
Pagina inizio
  • 142107 (literal)
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  • 96 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Issue: 14 Article Number: 142107 Acknowledgement: We acknowledge S. De Franceschi for helpful discussions and the E.U. Project HYSWITCH (Grant No. FP6-517567) for financial support. F.G. acknowledges the Nano-SciERA \"NanoFridge\" project for partial financial support. (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. CNR, Ist Nanosci, NEST, I-56127 Pisa, Italy (Deon F., Pellegrini V., Carillo F., Giazotto F., Sorba L., Beltram F.); 2. Scuola Normale Super Pisa, I-56127 Pisa, Italy (Deon F., Pellegrini V., Carillo F., Giazotto F., Sorba L., Beltram F.); 3. IOM, CNR, Lab TASC, I-34149 Trieste, Italy (Biasiol G.); (literal)
Titolo
  • Singlet-triplet transition in a few-electron lateral In0.75Ga0.25As/In0.75Al0.25As quantum dot (literal)
Abstract
  • The magnetic-field evolution of Coulomb blockade peaks in lateral In0.75Ga0.25As/In0.75Al0.25As quantum dots in the few-electron regime is reported. Quantum dots are defined by gates evaporated onto a 60-nm-thick hydrogen silsesquioxane insulating film. A gyromagnetic factor g(*)approximate to 4.4 is measured via zero-bias spin spectroscopy and a transition from singlet to triplet spin configuration is found at an in-plane magnetic field B=0.7 T. This observation opens the way to the manipulation of singlet and triplet states at moderate fields and its relevance for quantum information applications will be discussed. (literal)
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