Curvature effects on the surface thickness and tension at the free interface of 4He systems

The thickness W and the surface energy σA at the free interface of superfluid 4He are studied. Results of calculations carried out using density functionals for cylindrical and spherical systems are presented in a unified way, including a comparison with the behavior of planar slabs. It is found tha...

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Autores principales: Szybisz, L., Urrutia, I.
Formato: JOUR
Materias:
helium
article
calculation
conductor
density
energy
experiment
geometry
liquid
surface property
tension
thickness
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10980121_v68_n5_p_Szybisz
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_10980121_v68_n5_p_Szybisz
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spelling todo:paper_10980121_v68_n5_p_Szybisz2023-10-03T16:05:50Z Curvature effects on the surface thickness and tension at the free interface of 4He systems Szybisz, L. Urrutia, I. helium article calculation conductor density energy experiment geometry liquid surface property tension thickness The thickness W and the surface energy σA at the free interface of superfluid 4He are studied. Results of calculations carried out using density functionals for cylindrical and spherical systems are presented in a unified way, including a comparison with the behavior of planar slabs. It is found that for large species W is independent of the geometry. The obtained values of W are compared with prior theoretical results and experimental data. Experimental data favor results evaluated by adopting finite range approaches. The behavior of σA and WσA exhibits overshoots similar to that found previously for the central density, and the trend of these observables towards their asymptotic values is examined. © 2003 The American Physical Society. Fil:Szybisz, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Urrutia, I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10980121_v68_n5_p_Szybisz
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic helium
article
calculation
conductor
density
energy
experiment
geometry
liquid
surface property
tension
thickness
spellingShingle helium
article
calculation
conductor
density
energy
experiment
geometry
liquid
surface property
tension
thickness
Szybisz, L.
Urrutia, I.
Curvature effects on the surface thickness and tension at the free interface of 4He systems
topic_facet helium
article
calculation
conductor
density
energy
experiment
geometry
liquid
surface property
tension
thickness
description The thickness W and the surface energy σA at the free interface of superfluid 4He are studied. Results of calculations carried out using density functionals for cylindrical and spherical systems are presented in a unified way, including a comparison with the behavior of planar slabs. It is found that for large species W is independent of the geometry. The obtained values of W are compared with prior theoretical results and experimental data. Experimental data favor results evaluated by adopting finite range approaches. The behavior of σA and WσA exhibits overshoots similar to that found previously for the central density, and the trend of these observables towards their asymptotic values is examined. © 2003 The American Physical Society.
format JOUR
author Szybisz, L.
Urrutia, I.
author_facet Szybisz, L.
Urrutia, I.
author_sort Szybisz, L.
title Curvature effects on the surface thickness and tension at the free interface of 4He systems
title_short Curvature effects on the surface thickness and tension at the free interface of 4He systems
title_full Curvature effects on the surface thickness and tension at the free interface of 4He systems
title_fullStr Curvature effects on the surface thickness and tension at the free interface of 4He systems
title_full_unstemmed Curvature effects on the surface thickness and tension at the free interface of 4He systems
title_sort curvature effects on the surface thickness and tension at the free interface of 4he systems
url http://hdl.handle.net/20.500.12110/paper_10980121_v68_n5_p_Szybisz
work_keys_str_mv AT szybiszl curvatureeffectsonthesurfacethicknessandtensionatthefreeinterfaceof4hesystems
AT urrutiai curvatureeffectsonthesurfacethicknessandtensionatthefreeinterfaceof4hesystems
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