Bibliothek

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
  • Dynamic crystal field theory  (1)
  • PACS. 75.50.Xx Molecular magnets – 75.30.Ds Spin waves  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    Theoretical chemistry accounts 77 (1990), S. 85-109 
    ISSN: 1432-2234
    Schlagwort(e): Dynamic crystal field theory ; Vibronic coupling ; Vibronic selectivity ; d 3 Complexes
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The dynamic crystal field operators, corresponding to the normal point-charge displacements in an octahedral complex are analyzed in detail. The strict equivalence of absolute versus relative coordinate treatments is established. The resulting formalism is applied to the intensity distribution in the vibronic side bands of the sharp line luminescence spectra ofd 3 complexes. Thereby special attention is given to the role of spin-orbit coupling and to the elastic properties of the molecular force field. Using the closure procedure, the relative intensities of the side bands may be expressed in terms of a single dynamic crystal field parameter. These expressions provide a simple rationalization of the observed vibronic selection rules, entirely within the framework of dynamic crystal field theory.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    Springer
    The European physical journal 21 (2001), S. 511-519 
    ISSN: 1434-6036
    Schlagwort(e): PACS. 75.50.Xx Molecular magnets – 75.30.Ds Spin waves
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract: A continuum medium approach is proposed to describe the finite size dependent effects for the 1D isotropic Heisenberg ferromagnet. The results are compared to the exact Bethe ansatz solution for the finite chain. The approach is shown to adequately account for the behaviour of the eigenfunctions and eigenenergies. The continuum is obtained by integration in Fourier space via introduction of cut-offs at the integration limits and analytical continuation from the discrete lattice to the continuous medium. It offers a new perspective on the instability of bound states, and reveals the linear behaviour of the amplitude in the critical region and other features of the model in an analytical way. We further apply this approach to investigate the long wavelength expansion of the master equation and to show the route of constructing reliable approximations valid for more complicated models. It is concluded that the approach can be useful to study mesoscopic spin systems.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...