Superfluidity in H2films

M. C. Gordillo, D. M. Ceperley

Research output: Contribution to journalArticlepeer-review


Path integral Monte Carlo calculations were used to study a 2D system of H2 molecules. The ground state on a flat substrate is a triangular lattice, a localized solid. We find that the introduction of some weakly attractive impurities (specifically alkali metal atoms) in the right concentration (∼0.01 Å-2) stabilizes a liquid hydrogen phase of concentration 0.04 Å-2 which undergoes a Kosterlitz-Thouless superfluid transition below approximately 1.2 K.

Original languageEnglish (US)
Pages (from-to)3010-3013
Number of pages4
JournalPhysical review letters
Issue number16
StatePublished - 1997

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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