Superfluidity in H2 films
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....
| Autores: | , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 1997 |
| País: | España |
| Institución: | Universidad Pablo de Olavide (UPO) |
| Repositorio: | RIO. Repositorio Institucional Olavide |
| Idioma: | inglés |
| OAI Identifier: | oai:rio.upo.es:10433/978 |
| Acceso en línea: | http://hdl.handle.net/10433/978 |
| Access Level: | acceso abierto |
| Palabra clave: | Monte Carlo calculations Superfluidity |
| Sumario: | 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¿¿2) stabilizes a liquid hydrogen phase of concentration 0.04¿¿2 which undergoes a Kosterlitz-Thouless superfluid transition below approximately 1.2 K. |
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