Low field magnetotransport in strained Si/SiGe cavities (Articolo in rivista)

Type
Label
  • Low field magnetotransport in strained Si/SiGe cavities (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevB.71.245311 (literal)
Alternative label
  • G. Scappucci 1; L. Di Gaspare 1; F. Evangelisti 1; E. Giovine 2; A. Notargiacomo 2; R. Leoni 2; V. Piazza 3; P. Pingue 3; F. Beltram 3 (2005)
    Low field magnetotransport in strained Si/SiGe cavities
    in Physical review. B, Condensed matter and materials physics (Online); American Physical Society (APS), College Pk (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • G. Scappucci 1; L. Di Gaspare 1; F. Evangelisti 1; E. Giovine 2; A. Notargiacomo 2; R. Leoni 2; V. Piazza 3; P. Pingue 3; F. Beltram 3 (literal)
Pagina inizio
  • 245311 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Web of Science Category: Physics, Condensed Matter (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 71 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 8 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 24 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. Dipartimento di Fisica \"E. Amaldi,\" Università di Roma TRE, Via Vasca Navale 84, 00146 Roma, Italy 2. Istituto di Fotonica e Nanotecnologie, IFN-CNR, Via Cineto Romano 42, 00156 Roma, Italy 3. NEST-INFM and Scuola Normale Superiore, Via della Faggiola 19, 56126 Pisa, Italy (literal)
Titolo
  • Low field magnetotransport in strained Si/SiGe cavities (literal)
Abstract
  • Low field magnetotransport revealing signatures of ballistic transport effects in strained Si/SiGe cavities is investigated. We fabricated strained Si/SiGe cavities by confining a high mobility Si/SiGe two-dimensional electron gas in a bended nanowire geometry defined by electron-beam lithography and reactive ion etching. The main features observed in the low temperature magnetoresistance curves are the presence of a zero-field magnetoresistance peak and of an oscillatory structure at low fields. By adopting a simple geometrical model we explain the oscillatory structure in terms of electron magnetic focusing. A detailed examination of the zero-field peak line shape clearly shows deviations from the predictions of ballistic weak localization theory. (literal)
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