Local Mode Broadening by Impurity-Impurity Interactions

✍ Scribed by J. A. Harrington; Ch. T. Walker

• Book ID: 104542259
• Publisher: John Wiley and Sons
• Year: 1971
• Tongue: English
• Weight: 403 KB
• Volume: 43
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2220430221

✦ Synopsis

Abstract

Concentration and temperature dependences of the bandwidth of the Raman and infrared active local mode for H^−^ in BaF~2~ have been determined. The bandwidth is observed experimentally to vary as the square root of the impurity concentration, and as T^1.5^ at high temperatures. This concentration dependence is in qualitative accord with the theoretical predictions of Dawber and Elliott.