Bibliothek

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
  • Artikel: DFG Deutsche Nationallizenzen  (3)
  • 2000-2004  (2)
  • 1995-1999
  • 1985-1989  (1)
  • PACS. 75.10.Jm Quantized spin models  (2)
  • 68.35  (1)
Datenquelle
  • Artikel: DFG Deutsche Nationallizenzen  (3)
Materialart
Erscheinungszeitraum
  • 2000-2004  (2)
  • 1995-1999
  • 1985-1989  (1)
Jahr
Schlagwörter
  • 1
    Digitale Medien
    Digitale Medien
    The extended spin ladder and net models: exact dimer ground state and quantum phase transition (2003)
    Springer
    The European physical journal 31 (2003), S. 63-67 
    Details
    ISSN: 1434-6036
    Schlagwort(e): PACS. 75.10.Jm Quantized spin models
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: We investigate an extended spin ladder with diagonal frustrated exchanges in a wide parameter regime. By representing the model as a sum of semidefinite positive projection operators, we prove that this model has exactly a dimer ground state. Smoothly changing parameters may lead the model cover several exactly known models. Starting from this ladder model, we proposed two two-dimensional net models with exact ground states. The quantum phase transition of the ground state, due to the change of exchange strengths along perpendicular rungs, is also discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1140/epjb/e2003-00009-7
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 2
    Digitale Medien
    Digitale Medien
    Exact ground state of the generalized three-dimensional Shastry-Sutherland model (2002)
    Springer
    The European physical journal 29 (2002), S. 15-18 
    Details
    ISSN: 1434-6036
    Schlagwort(e): PACS. 75.10.Jm Quantized spin models
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: We generalize the Shastry-Sutherland model to three dimensions. By representing the model as a sum of the semidefinite positive projection operators, we exactly prove that the model has exact dimer ground state. Several schemes for constructing the three-dimensional Shastry-Sutherland model are proposed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1140/epjb/e2002-00256-0
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Transmission electron microscopy study of defects in Sn-doped GaAs films grown by molecular beam epitaxy (1987)
    Springer
    Applied physics 44 (1987), S. 143-151 
    Details
    ISSN: 1432-0630
    Schlagwort(e): 68.55Jh ; 81.30Fb ; 68.35
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau , Physik
    Notizen: Abstract Films of GaAs, heavily doped with Sn, which have been grown by molecular-beam epitaxy are found to contain single-crystal Sn particles situated in the nearsurface region of the epilayer GaAs. The morphology and chemical composition of the particles have been examined by using cross-section transmission electron microscopy combined with energy-dispersive x-ray spectroscopy. Different growth conditions were used to study the Sn-particle formation and high-resolution transmission electron microscopy was used to investigate microstructures. The observations are discussed in terms of several models previously proposed for these phenomena.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00626415
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...