Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

Path integral Monte Carlo simulations are used to study quantum Lennard-Jones solids and to examine the dependence of the melting temperature on the degree of quantum delocalization. To determine the solid–liquid coexistence conditions and metastability limits, an umbrella sampling strategy is adopted to generate Landau free energy curves. Simulation results for the melting point dependence on the particle mass are shown to be reasonable in comparison with experimental data on the melting curves of solid H2 and D2. Both the enthalpy and entropy of melting are shown to decrease with increasing strength of quantum effects. For solid molecular hydrogen and its isotopomers, zero-point energy effects are shown to be important even at melting temperatures.

Bibliography

Chakravarty, C., & Lynden-Bell, R. M. (2000). Landau free energy curves for melting of quantum solids. The Journal of Chemical Physics, 113(20), 9239–9247.

Authors 2
  1. C. Chakravarty (first)
  2. R. M. Lynden-Bell (additional)
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Dates
Type When
Created 23 years ago (July 26, 2002, 8:41 a.m.)
Deposited 1 year, 6 months ago (Feb. 5, 2024, 9:05 p.m.)
Indexed 1 year, 1 month ago (July 12, 2024, 1:15 p.m.)
Issued 24 years, 9 months ago (Nov. 22, 2000)
Published 24 years, 9 months ago (Nov. 22, 2000)
Published Print 24 years, 9 months ago (Nov. 22, 2000)
Funders 0

None

@article{Chakravarty_2000, title={Landau free energy curves for melting of quantum solids}, volume={113}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1316105}, DOI={10.1063/1.1316105}, number={20}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Chakravarty, C. and Lynden-Bell, R. M.}, year={2000}, month=nov, pages={9239–9247} }