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artículo con referato
"3He Impurities in 4He Systems Adsorbed on Curved Substrates"
S.A. Sartarelli, L. Szybisz and E.S. Hernández
J. Low. Temp. Phys. 138(5-6) (2005) 979-993
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.
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