Soft mode mechanism of the transition into the low-temperature ferroelastic phase in K-=SUB=-3-=/SUB=-Na(CrO-=SUB=-4-=/SUB=-)-=SUB=-2-=/SUB=- crystals
In: Физика твердого тела, Jg. 58 (2016), S. 2423-2423
Online
unknown
Zugriff:
The sequence of phase transitions P3m1 -> C2/m -> C2/c in K3Na(CrO4)2 crystals and existence of the intermediate phase have been studied both experimentally by the Raman scattering method and theoretically by programs and retrieval tools of the Bilbao Crystallographic Server. A zone-edge soft mode responsible for a transition from the intermediate C2/m to a low-symmetry C2/c phase at T=210 K has been discovered experimentally for the first time. The symmetry of the soft mode has been established theoretically to be A2+. The temperature interval of the intermediate monoclinic phase has been determined to be 239-210 K. This work was supported by a grant from the Department of Physical Sciences of the Russian Academy of Sciences within the framework of the program "Basic Optical Spectroscopy and Its Applications."
| Titel: |
Soft mode mechanism of the transition into the low-temperature ferroelastic phase in K-=SUB=-3-=/SUB=-Na(CrO-=SUB=-4-=/SUB=-)-=SUB=-2-=/SUB=- crystals
|
|---|---|
| Autor/in / Beteiligte Person: | Kitaev, Yu.E. ; Maksimova, T. I. ; Krylov, Alexander S. |
| Link: | |
| Zeitschrift: | Физика твердого тела, Jg. 58 (2016), S. 2423-2423 |
| Veröffentlichung: | Ioffe Institute Russian Academy of Sciences, 2016 |
| Medientyp: | unknown |
| ISSN: | 0367-3294 (print) |
| DOI: | 10.21883/ftt.2016.12.43867.187 |
| Schlagwort: |
|
| Sonstiges: |
|