Volume 33, Number 8, March II 1996
|Page(s)||623 - 628|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
Observation of rapid atomic motion in solid 3He-4He mixtures using NMR
Technion, Israel Institute of Technology -
Haifa, 32000, Israel
Accepted: 25 January 1996
We compared liquid and solid mixtures at coexistence using NMR imaging of the density of and of the T2 relaxation time in the two phases. We find that above 1 K, atoms in a bcc solid are more mobile than in the superfluid liquid. This rapid motion, induced by vacancies, takes place on a microscopic scale and can be explained in terms of -vacancy attraction of quantum origin. We relate our observations to similar effects observed in Sn-Pb alloys.
PACS: 67.80.Mg – Defects, impurities, and diffusion / 61.72.Ji – Point defects (vacancies, interstitials, color centers, etc.) and defect clusters / 67.80.-s – Solid helium and related quantum crystals
© EDP Sciences, 1996
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.