Abstract
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 language | English (US) |
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Pages (from-to) | 3010-3013 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 79 |
Issue number | 16 |
DOIs | |
State | Published - 1997 |
ASJC Scopus subject areas
- General Physics and Astronomy