Heat capacity of 3-He in Vycor glass
Physikalisches Institut, Universität Bayreuth - D-95440 Bayreuth, Germany
Accepted: 7 April 1997
We have measured the heat capacity of confined in porous Vycor glass at temperatures from 10 to 500 mK and pressures from 0 to 28 bar. No significant change of the Fermi temperature or other size-effect corrections to the heat capacity of the liquid part in the center of the Vycor pores have been found. A broad heat capacity peak from the surface layer appears below 50 mK due to the ordering of spins in amorphous solid . Replacing all the surface by removes this contribution and thus reveals the linear heat capacity of confined liquid alone.
PACS: 67.55.Cx – Thermodynamic properties / 67.70.+n – Films (including physical adsorption) / 67.80.Gb – Thermal properties
© EDP Sciences, 1997