3He impurities in 4He systems adsorbed on curved substrates

It is shown that 3He impurities in sufficiently large 4He systems adsorbed onto substrates with curved geometries form surface bound states, analogous to the Andreev state on a planar liquid-vapor interface. We report the analysis performed for superfluid 4He adsorbed on the external surface of the...

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Detalles Bibliográficos
Autores principales: Sartarelli, S.A., Szybisz, L., Hernández, E.S.
Formato: JOUR
Materias:
3He impurities
Andreev state
Substrates
Computational geometry
Films
Fullerenes
Gold
Impurities
Nanostructured materials
Numerical analysis
Phase interfaces
Probability density function
Curved substrates
Helium impurities
Nanowires
Planar liquid vapor interface
Helium
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222291_v138_n5-6_p979_Sartarelli
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:It is shown that 3He impurities in sufficiently large 4He systems adsorbed onto substrates with curved geometries form surface bound states, analogous to the Andreev state on a planar liquid-vapor interface. We report the analysis performed for superfluid 4He adsorbed on the external surface of the nano-fullerene C60 and on cylindrical nano-wires of Au. It is found that a single 3He impurity diluted into such adsorbed structures behaves as on films on planar substrates and as on pure 4He clusters. © 2005 Springer Science+Business Media, Inc.

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