Theoretical study of H2 in a two-dimensional crystalline matrix

Details Theoretical study of H2 in a two-dimensional crystalline matrix Theoretical study of H2 in a two-dimensional crystalline matrix

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005njph....7...78b&link_type=abstract

New Journal of Physics, Volume 7, Issue 1, pp. 78 (2005).

Physics

6

Scientific paper

We have carried out extensive path integral Monte Carlo simulations of two-dimensional para-hydrogen (p-H2) embedded in a crystalline matrix of alkali atoms. Our results show that, at low temperatures (lap5 K), the thermodynamically stable phase of p-H2 is a solid, commensurate with the underlying lattice. A nonzero superfluid signal for p-H2 is observed in simulated systems of very small size (e.g. 13 molecules); however, results for systems of larger sizes are altogether consistent with absence of superfluidity in the thermodynamic limit.

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