DYNAMICS OF DEUTERON GLASSES AS PROBED BY 2D-EXCHANGE NMR

Authors
DOLINSEK J ZALAR B BLINC R
Citation
J. Dolinsek et al., DYNAMICS OF DEUTERON GLASSES AS PROBED BY 2D-EXCHANGE NMR, Zeitschrift fur Naturforschung. A, A journal of physical sciences, 49(1-2), 1994, pp. 329-336
Citations number
17
Categorie Soggetti
Chemistry Physical",Physics
Journal title
Zeitschrift fur Naturforschung. A, A journal of physical sciences → ACNP
ISSN journal
09320784
Volume
49
Issue
1-2
Year of publication
1994
Pages
329 - 336
Database
ISI
SICI code
0932-0784(1994)49:1-2<329:DODGAP>2.0.ZU;2-8
Abstract
The deuteron intra-bond dynamics of the deuteron glass phase in Rb0.68 (ND4)0.32D2AsO4, has been studied by 2D exchange NMR which extends the NMR observation window from the kHz region into the milli-Hertz regio n. The results show that the 0 D...0 deuterons are indeed the basic re versible two-position dipoles in the structure and that deuteron intra -bond exchange - and thus dipole reversal transition - occurs deeply i n the glass phase well below T(g) where 1 D NMR techniques observe onl y frozen static glassy disorder.