Calculation of the soft-mode frequency for the alpha - beta transition in quartz

YURTSEVEN H. H., Tari O.

OPTIK, cilt.127, sa.10, ss.4470-4472, 2016 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 127 Sayı: 10
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.ijleo.2016.01.167
  • Dergi Adı: OPTIK
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4470-4472
  • Anahtar Kelimeler: Soft mode, Alpha-beta transition, Quartz, DISPLACIVE PHASE-TRANSITION, MOLECULAR-DYNAMICS, SCATTERING, BEHAVIOR, SILICA, SPECTROSCOPY, RANGE
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

The alpha - beta structural transition occurs in quartz at T-c = 846 K. The frequency of the soft mode associated with the volume increase, decreases with increasing temperature as the transition temperature is approached.