Details

Autor(en) / Beteiligte

• Nesterenko, N. M.
• Fomin, V. I.
• Peschanskii, A. V.
• Mitkevich, V. V.

Titel

Raman scattering and X-ray data in the region of ferroelastic phase transition to monoclinic phase in KSc(MoO4)2

Ist Teil von

• Ferroelectrics, 2000-02, Vol.239 (1), p.101-108, Article 101

Ort / Verlag

Taylor & Francis Group

Erscheinungsjahr

2000

Link zum Volltext

Quelle

Taylor & Francis

Beschreibungen/Notizen

• Low-energy lattice modes were investigated above and below the temperature of phase transition from trigonal phase to monoclinic one in KSc(MoO 4 ) 2 by Raman scattering method. X-ray data and Raman spectra manifest the anomalies in the temperature region above T-260 K, temperature of phase transition to monoclinic phase which were not explained in the previous phenomenological model. More complex model is discussed. It was supposed that at 237-240K the first-order phase transition between two monoclinic phases C2/m and C2/c occurs in polydomain samples of KSc(MoO 4 ) 2 .