%0 Journal Article
%T Condensation of helium in aerogels and athermal dynamics of the Random Field Ising Model
%+ Hélium : du fondamental aux applications (NEEL - HELFA)
%+ Laboratoire Charles Coulomb (L2C)
%A Aubry, Geoffroy
%A Bonnet, Fabien
%A Melich, Mathieu
%A Guyon, Laurent
%A Spathis, Panayotis
%A Despetis, Florence
%A Wolf, Pierre-Etienne
%Z 5 p + suppl. material
%< avec comité de lecture
%@ 0031-9007
%J Physical Review Letters
%I American Physical Society
%V 113
%N 8
%P 085301
%8 2014-08-21
%D 2014
%Z 1309.1243
%R 10.1103/PhysRevLett.113.085301
%K out-of-equilibrium phase transition
%K liquid-vapor transition
%K disorder
%K Random Field Ising Model
%K avalanches
%K hysteresis
%K helium
%K silica aerogel
%Z 64.60.Ht, 64.70.F-, 75.60.Ej, 67.25.bh
%Z Physics [physics]/Condensed Matter [cond-mat]/Disordered Systems and Neural Networks [cond-mat.dis-nn]Journal articles
%X High resolution measurements reveal that condensation isotherms of $^4$He in a silica aerogel become discontinuous below a critical temperature. We show that this behaviour does not correspond to an equilibrium phase transition modified by the disorder induced by the aerogel structure, but to the disorder-driven critical point predicted for the athermal out-of-equilibrium dynamics of the Random Field Ising Model. Our results evidence the key role of non-equilibrium effects in the phase transitions of disordered systems.
%G English
%Z HEVEPOR
%2 https://hal.science/hal-00858215v3/document
%2 https://hal.science/hal-00858215v3/file/Aubry2014pp.pdf
%L hal-00858215
%U https://hal.science/hal-00858215
%~ UGA
%~ CNRS
%~ UNIV-GRENOBLE1
%~ INPG
%~ NEEL
%~ L2C
%~ NEEL-HELFA
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021