Condensation of helium in nanoscopic alkali wedges at zero temperature

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We present a complete calculation of the structure of liquid He4 confined to a concave nanoscopic wedge, as a function of the opening angle of the walls. This is achieved within a finite-range density functional formalism. The results here presented, restricted to alkali metal substrates, illustrate...

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Autor principal: Hernández, Ester Susana
Otros Autores: Ancilotto, F., Barranco, M., Mayol, R., Pi, M.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2006
Acceso en línea:Registro en Scopus
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100 1 |a Hernández, Ester Susana 
245 1 0 |a Condensation of helium in nanoscopic alkali wedges at zero temperature 
260 |c 2006 
270 1 0 |m Hernández, E.S.; Departamento de Física, Facultad de Ciencias Exactas Y Naturales, Consejo Nacional de Investigaciones Científicas Y Técnicas, Buenos Aires, Argentina 
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504 |a Ancilotto, F., Sartori, A.M., Toigo, F., (1998) Phys. Rev. B, 58, p. 5085. , PRBMDO 0163-1829 10.1103/PhysRevB.58.5085 
504 |a Ancilotto, F., Faccin, F., Toigo, F., (2000) Phys. Rev. B, 62, p. 17035. , PRBMDO 0163-1829 10.1103/PhysRevB.62.17035 
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506 |2 openaire  |e Política editorial 
520 3 |a We present a complete calculation of the structure of liquid He4 confined to a concave nanoscopic wedge, as a function of the opening angle of the walls. This is achieved within a finite-range density functional formalism. The results here presented, restricted to alkali metal substrates, illustrate the change in meniscus shape from rather broad to narrow wedges on weak and strong alkali adsorbers, and we relate this change to the wetting behavior of helium on the corresponding planar substrate. As the wedge angle is varied, we find a sequence of stable states that, in the case of cesium, undergo one filling and one emptying transition at large and small openings, respectively. A computationally unambiguous criterion to determine the contact angle of He4 on cesium is also proposed. © 2006 The American Physical Society.  |l eng 
593 |a Departamento de Física, Facultad de Ciencias Exactas Y Naturales, Consejo Nacional de Investigaciones Científicas Y Técnicas, Buenos Aires, Argentina 
593 |a Dipartimento di Fisica 'G. Galilei', Università di Padova, via Marzolo 8, I-35131 Padova, Italy 
593 |a DEMOCRITOS National Simulation Center, Trieste, Italy 
593 |a Departament ECM, Facultat de Física, Universitat de Barcelona, 08028 Barcelona, Spain 
700 1 |a Ancilotto, F. 
700 1 |a Barranco, M. 
700 1 |a Mayol, R. 
700 1 |a Pi, M. 
773 0 |d 2006  |g v. 73  |k n. 24  |p Phys. Rev. B Condens. Matter Mater. Phys.  |x 10980121  |t Physical Review B - Condensed Matter and Materials Physics 
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