Thermalization of the system "3He-aerogel" at 1.5 K

Details Thermalization of the system "3He-aerogel" at 1.5 K Thermalization of the system "3He-aerogel" at 1.5 K

2010-12-10

arxiv.org/abs/1012.2309v1

JETP letters. - 2011. - V.93. - N.4. - p.223 - 225

Physics

Condensed Matter

Other Condensed Matter

4 figures

Scientific paper

10.1134/S0021364011040035

At the present work we propose a new method for studying the processes of thermodynamic equilibrium setting in the adsorbed 3He film in a porous media. By this method we have studied the thermalization of the adsorbed 3He on the silica aerogel surface at the temperature 1.5 K. The process of the thermodynamic equilibrium setting was controlled by measuring of the pressure in the experimental cell, the amplitude of the NMR signal and the time of the nuclear spin-spin and spin-lattice relaxation times of an adsorbed 3He. The thermodynamic equilibrium setting in the system "adsorbed helium-3 - aerogel" has the characteristic time 26 min.

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