LIQUID-STATE ANOMALIES AND THE STELL-HEMMER CORE-SOFTENED POTENTIAL

Authors
SADRLAHIJANY MR SCALA A BULDYREV SV STANLEY HE
Citation
Mr. Sadrlahijany et al., LIQUID-STATE ANOMALIES AND THE STELL-HEMMER CORE-SOFTENED POTENTIAL, Physical review letters, 81(22), 1998, pp. 4895-4898
Citations number
26
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
81
Issue
22
Year of publication
1998
Pages
4895 - 4898
Database
ISI
SICI code
0031-9007(1998)81:22<4895:LAATSC>2.0.ZU;2-Z
Abstract
We study the liquid anomalies arising from the Stell-Hemmer interactio n, using molecular dynamics simulations and approximate 2D solutions. We observe in the liquid phase three types of anomalies: (i) An increa se in specific volume upon cooling, (ii) an increase in isothermal com pressibility upon cooling, and (iii) an increase in the diffusion coef ficient with pressure. We relate the anomalies to the existence of two different local structures in the liquid phase. [S0031-9007(98)07749- 7].