AMMONIUM ION MOTION AND PHASE-TRANSITIONS IN (ND4)(2)TECL6 STUDIED BYRAMAN-SCATTERING

Authors
SHI JR MULLER S ARNSCHEIDT B PELZL J XU YC WU X
Citation
Jr. Shi et al., AMMONIUM ION MOTION AND PHASE-TRANSITIONS IN (ND4)(2)TECL6 STUDIED BYRAMAN-SCATTERING, Chinese Physics Letters, 13(1), 1996, pp. 58-61
Citations number
8
Categorie Soggetti
Physics
Journal title
Chinese Physics Letters → ACNP
ISSN journal
0256307X
Volume
13
Issue
1
Year of publication
1996
Pages
58 - 61
Database
ISI
SICI code
0256-307X(1996)13:1<58:AIMAPI>2.0.ZU;2-P
Abstract
The internal vibrations of the ammonium ion in (ND4)(2) TeCl6 have bee n studied by Raman scattering in the temperature range 4.2-300 K. Spli tting of A(1)-, E-, and T-2- modes have been observed at T-c2 = 48 K a nd T-c5 = 28 K. These splittings were well interpreted by group theore tical correlation method. The reason for the transitions at T-c2 and T -c5 may be the decrease of the force constant in the deuterated ammoni um ion.