Progress on the measurement of the specific heat of {sup 4}He-filled Vycor near 2K

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Bulletin of the American Physical Society

OSTI ID:375052

Zassenhaus, G M; Tyler, A; Reppy, J D

The authors report progress on a measurement of the specific heat of {sup 4}He-filled Vycor glass near 2K. It has been suggested that due to the reduced superfluid density in the {sup 4}He-Vycor system, the heat capacity signature will be diminished by a factor of 10{sup 4} over the bulk value and will occur at the superflow onset temperature of T{sub c} = 1.955 K. This is supported by observations of thin films of {sup 4}He in Vycor which show reduced heat capacity peaks coincident with superflow onset. The adiabetic heat capacity technique the authors are currently implementing should have resolution of 1 part in 10{sup 6} and is expected to determine the presence of the predicted peak in C{sub v}.

• OSTI ID: 375052
• Report Number(s): CONF-9304297--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 40; ISSN 0003-0503; ISSN BAPSA6
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HELIUM 4
SPECIFIC HEAT
TEMPERATURE RANGE 0000-0013 K
VYCOR