Back to Search
Start Over
Many-body interaction effects on the low-k structure of liquid Kr
- Source :
- Physical review. E, Statistical, nonlinear, and soft matter physics. 63(5 Pt 1)
- Publication Year :
- 2000
-
Abstract
- Neutron diffraction measurements and theoretical calculations of the structure factor $S(k)$ of liquid Kr are extended to small k values $(kl4 {\mathrm{nm}}^{\ensuremath{-}1}).$ The results show that many-body interaction contributions have an increasing effect on $S(k)$ as $\stackrel{\ensuremath{\rightarrow}}{k}0,$ reaching at least 40% of the measured intensity. Both the phase diagram and the low-$k$ structural data of dense Kr turn out to be closely reproduced by the hierarchical reference theory if additional many-body forces are taken into account by an augmented strength of the Axilrod-Teller triple-dipole potential. The experimental density derivative of $S(k)$ is also used for a very sensitive test of the theories and interaction models considered here.
Details
- ISSN :
- 15393755
- Volume :
- 63
- Issue :
- 5 Pt 1
- Database :
- OpenAIRE
- Journal :
- Physical review. E, Statistical, nonlinear, and soft matter physics
- Accession number :
- edsair.doi.dedup.....3bf15437ae7380de2077ca20d6cc9260