Atomically thin superfluid helium films on solid hydrogen

We have measured both adsorption isotherms and third-sound resonance of atomically thin {sup 4}He films on solid hydrogen. We find helium more weakly bound to a hydrogen surface than to other rare-gas surfaces, with a van der Waals cofficient of 4.6{plus minus}0.4 K (layers){sup 3}. We have also mea...

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Bibliographic Details
Published in:	Physical review letters Vol. 67; no. 9; pp. 1118 - 1121
Main Authors:	SHIRRON, P. J, MOCHEL, J. M
Format:	Journal Article
Language:	English
Published:	Ridge, NY American Physical Society 26-08-1991
Subjects:	08 HYDROGEN 080800 - Hydrogen- Properties & Composition 640450 - Fluid Physics- Superfluidity ADSORPTION ISOTHERMS CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Condensed matter: structure, mechanical and thermal properties ELEMENTS EVEN-EVEN NUCLEI Exact sciences and technology Films (including physical adsorption) FLUIDS HELIUM 4 HELIUM II HELIUM ISOTOPES HYDROGEN ISOTHERMS ISOTOPES LIGHT NUCLEI NONMETALS NUCLEI Physics QUANTUM FLUIDS Quantum fluids and solids; liquid and solid helium SORPTIVE PROPERTIES STABLE ISOTOPES SURFACE PROPERTIES THIN FILMS THIRD SOUND VAN DER WAALS FORCES WETTABILITY Liquid solid interface Support Hydrogen Chemical bond Crystals Superfluid Kosterlitz Thouless transition Coverage rate Experimental study Helium Thin film Sound velocity Adsorption Van der Waals interaction Isotherm Chemical potential Third sound
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