Dynamic and static orientational disorder in mixed K1-x(NH4)(x)I crystals

Authors
Shuvalov, LA Natkaniec, U Smirnov, LS
Citation
La. Shuvalov et al., Dynamic and static orientational disorder in mixed K1-x(NH4)(x)I crystals, CRYSTALLO R, 45(2), 2000, pp. 270-276
Citations number
15
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
CRYSTALLOGRAPHY REPORTS
ISSN journal
10637745 → ACNP
Volume
45
Issue
2
Year of publication
2000
Pages
270 - 276
Database
ISI
SICI code
1063-7745(200003/04)45:2<270:DASODI>2.0.ZU;2-K
Abstract
Earlier, we have shown that, at low temperatures, the mixed K1 - x(NH4)(x)I crystals show two low-energy resonance modes in the dynamically orientatio nally disordered region of the alpha-phase and statically orientationally d isordered phase of the orientational glass, absent in the orientationally o rdered gamma-phase. Below we report the results of the experimental study o f the low-energy resonance and local modes in K1 - x(NH4)(x)I crystals obta ined by the method of inelastic incoherent neutron scattering (IINS) over t he wide temperature range. (C) 2000 MAIK "Nauka/Interperiodica".