SELF-DIFFUSION IN HE-3 CRYSTALS

Authors
ZUEV NV BOIKO VV DYUMIN NE GRIGOREV VN
Citation
Nv. Zuev et al., SELF-DIFFUSION IN HE-3 CRYSTALS, Journal of low temperature physics, 110(1-2), 1998, pp. 103-108
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Journal of low temperature physics → ACNP
ISSN journal
00222291
Volume
110
Issue
1-2
Year of publication
1998
Pages
103 - 108
Database
ISI
SICI code
0022-2291(1998)110:1-2<103:SIHC>2.0.ZU;2-Y
Abstract
Measurements of self-diffusion in bcc He-3 24,20-24,80 cm(3)/mole were carried out by a new method in the temperature range 0.4 - 0.8 K. The vacancy diffusion coefficient was obtained by comparison of the self- diffusion data and the vacancy specific heat It is found out that the vacancy diffusion is independent of temperature, because of spin disor der in this region. The data obtained shows that vacancies in bcc He-3 are wide-gap quasiparticles.