Evidence for a disorder induced phase transition in the condensation of 4He in aerogels

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dc.creatorLambert, Thierry
dc.creatorDespetis, Florence
dc.creatorPuech, Laurent
dc.creatorWolf, Pierre-Etienne
dc.date2006-03-20
dc.date2006-12-27
dc.date.accessioned2026-07-07T07:37:10Z
dc.date.available2026-07-07T07:37:10Z
dc.descriptionWe report on thermodynamic and optical measurements of the condensation process of $^4$He in two silica aerogels of same porosity 95%, but different microstructures resulting from different pH during synthesis. For a base-catalyzed aerogel, the temperature dependence of the shape of adsorption isotherms and of the morphology of the condensation process show evidence of a disorder induced transition,in agreement with recent theoretical predictions. This transition is not observed for a neutral-catalyzed aerogel, which we interpret as due to a larger disorder in this case.
dc.description4 pages latex
dc.identifierhttps://arxiv.org/abs/cond-mat/0603486
dc.identifierhttp://arxiv.org/abs/cond-mat/0603486
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/120679
dc.subjectSoft Condensed Matter
dc.titleEvidence for a disorder induced phase transition in the condensation of 4He in aerogels
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