Volume 52, Number 6, December II 2000
|Page(s)||647 - 652|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 September 2002|
Tunneling states in mineral crystals
Laboratoire de Physique des Solides - Université Paris-Sud
Bât. 510, 91405 Orsay, France
Accepted: 18 October 2000
We report on an acoustic study at low temperature of two natural mineral crystals (olivine and cordierite). These samples are single crystals of very good quality and have in their unit cells 28 atoms and 116 atoms, respectively. We have observed the specific acoustic properties expected from tunneling states (TSs): logarithmic velocity variation and phonon echoes. These results suggest that TSs are intrinsic in crystals with a large number of atoms in the unit cell.
PACS: 66.35.+a – Quantum tunneling of defects / 63.20.Pw – Localized modes / 62.65.+k – Acoustical properties of solids
© EDP Sciences, 2000
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.