Adsorption of helium on Au nanowires

The growth of helium films on An nanowires is investigated within finite range density functional theory. It is shown that as in previous studies of helium adsorption on spherical surfaces, submonolayer condensation and stable layering transitions take place, and that a growth instability appears ab...

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Autor principal: Hernández, E.S.
Formato: JOUR
Materias:
Adsorption
Helium
Nanowires
Condensation
Film growth
Gold
Mathematical models
Nanostructured materials
Capillary condensation
Density functional theory
Growth instability
Helium adsorption
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00222291_v137_n1-2_p89_Hernandez
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00222291_v137_n1-2_p89_Hernandez
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spelling todo:paper_00222291_v137_n1-2_p89_Hernandez2023-10-03T14:28:37Z Adsorption of helium on Au nanowires Hernández, E.S. Adsorption Helium Nanowires Adsorption Condensation Film growth Gold Mathematical models Nanostructured materials Capillary condensation Density functional theory Growth instability Helium adsorption Nanowires Helium The growth of helium films on An nanowires is investigated within finite range density functional theory. It is shown that as in previous studies of helium adsorption on spherical surfaces, submonolayer condensation and stable layering transitions take place, and that a growth instability appears above a finite fi/m thickness. The competition between unstable fi/m growth on a single tube and stable capillary condensation in an array of nanowires is examined in a simplified mean field-like model. Results are displayed to illustrate adsorption and its stable and unstable patterns outside solid nanowires, cavities in bulk gold and in the gap between a cavity and an inner concentric cylinder. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00222291_v137_n1-2_p89_Hernandez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Adsorption
Helium
Nanowires
Adsorption
Condensation
Film growth
Gold
Mathematical models
Nanostructured materials
Capillary condensation
Density functional theory
Growth instability
Helium adsorption
Nanowires
Helium
spellingShingle Adsorption
Helium
Nanowires
Adsorption
Condensation
Film growth
Gold
Mathematical models
Nanostructured materials
Capillary condensation
Density functional theory
Growth instability
Helium adsorption
Nanowires
Helium
Hernández, E.S.
Adsorption of helium on Au nanowires
topic_facet Adsorption
Helium
Nanowires
Adsorption
Condensation
Film growth
Gold
Mathematical models
Nanostructured materials
Capillary condensation
Density functional theory
Growth instability
Helium adsorption
Nanowires
Helium
description The growth of helium films on An nanowires is investigated within finite range density functional theory. It is shown that as in previous studies of helium adsorption on spherical surfaces, submonolayer condensation and stable layering transitions take place, and that a growth instability appears above a finite fi/m thickness. The competition between unstable fi/m growth on a single tube and stable capillary condensation in an array of nanowires is examined in a simplified mean field-like model. Results are displayed to illustrate adsorption and its stable and unstable patterns outside solid nanowires, cavities in bulk gold and in the gap between a cavity and an inner concentric cylinder.
format JOUR
author Hernández, E.S.
author_facet Hernández, E.S.
author_sort Hernández, E.S.
title Adsorption of helium on Au nanowires
title_short Adsorption of helium on Au nanowires
title_full Adsorption of helium on Au nanowires
title_fullStr Adsorption of helium on Au nanowires
title_full_unstemmed Adsorption of helium on Au nanowires
title_sort adsorption of helium on au nanowires
url http://hdl.handle.net/20.500.12110/paper_00222291_v137_n1-2_p89_Hernandez
work_keys_str_mv AT hernandezes adsorptionofheliumonaunanowires
_version_ 1782026930493587456

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