http://www.cnr.it/ontology/cnr/individuo/prodotto/ID39124
Interatomic interactions and the Cotton-Mouton effect for helium. (Articolo in rivista)
- Type
- Label
- Interatomic interactions and the Cotton-Mouton effect for helium. (Articolo in rivista) (literal)
- Anno
- 2002-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Rizzo A., Ruud K., Bishop D. M. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Titolo
- Interatomic interactions and the Cotton-Mouton effect for helium. (literal)
- Abstract
- We report calculations of the interaction-induced polarizability
($\Delta \alpha^{anis}$), magnetizability ($\Delta \xi^{anis}$)
and hypermagnetizability ($\Delta \eta^{anis}$) anisotropies for
the helium gas as a function of the interatomic separation. From
these data we determine the virial coefficients for the
Cotton--Mouton effect and the hypermagnetizability anisotropy of
helium. We also find the mean polarizability and magnetizability
as a function of the interatomic separation and the virial
coefficients for these properties. The results for the
Cotton--Mouton effect indicate that pressure affects the
Cotton--Mouton constant to the same extent as it does the second
hyperpolarizability ($\gamma$) and the virial coefficient
$b_{CME}(\omega,T)$ lies in the range of $-1.6$ to $-1.8$ cm$^3$
mol$^{-1}$. This means that pressure effects for the
Cotton--Mouton constant could be detected with modern experimental
techniques. All calculations were carried out using the full
configuration interaction technique and large basis sets of London
atomic orbitals. The polarizability calculations were performed
both for relevant optical frequencies as well as the static case.
(literal)
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- Autore CNR
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