Local-Mode Frequency Due to Light Substitutional Impurities in Alkali-Halide Crystals: Application to theUCenter

1965 ◽  
Vol 138 (1A) ◽  
pp. A203-A212 ◽  
Author(s):  
R. Fieschi ◽  
G. F. Nardelli ◽  
N. Terzi
Keyword(s):  
Alkali Halide ◽  
Mode Frequency ◽  
Local Mode ◽  
Alkali Halide Crystals ◽  
Substitutional Impurities

Far-infrared absorption of alkali halide crystals containing H− ions

1968 ◽  
Vol 46 (20) ◽  
pp. 2263-2270 ◽  
Author(s):  
E. J. Woll Jr. ◽  
T. Gethins ◽  
T. Timusk
Keyword(s):  
Alkali Halide ◽  
Far Infrared ◽  
Local Mode ◽  
Host Crystal ◽  
Substitutional Impurity ◽  
Side Band ◽  
Alkali Halide Crystals ◽  
Localized Vibrations ◽  
Absorption Measurements ◽  
Good Agreement

The optical absorption from localized vibrations associated with the H− ion as a substitutional impurity in KBr and KI is investigated in the far infrared. A force constant model for the defect is derived from a theoretical fit of the experimental results for the anharmonic side band of the H− local mode. This model is used to predict the absorption spectrum of the defect in the far infrared below the Reststrahlen frequency. Good agreement is obtained with absorption measurements at low temperature. It is shown that some of the observed peaks correspond to localized modes, while others are directly related to van Hove singularities in the frequency spectrum of the host crystal.

Anion polarizability functions in alkali halide crystals

1997 ◽  
Vol 92 (6) ◽  
pp. 1029-1033
Author(s):  
A. BATANA ◽  
J. BRUNO ◽  
R.W. MUNN
Keyword(s):  
Alkali Halide ◽  
Alkali Halide Crystals

Effect of the activator impurity on the scintillation yield in alkali-halide crystals

2014 ◽  
Vol 252 (2) ◽  
pp. 380-385 ◽  
Author(s):  
A. Gektin ◽  
S. Gridin ◽  
S. Vasyukov ◽  
A. Vasil'ev ◽  
A. Belsky ◽  
...  
Keyword(s):  
Alkali Halide ◽  
Alkali Halide Crystals

scholarly journals Optical properties of alkali halide crystals

2020 ◽  
Vol 1697 ◽  
pp. 012253
Author(s):  
I Kaplunov ◽  
G Kropotov ◽  
V Rogalin ◽  
A Shahmin
Keyword(s):  
Optical Properties ◽  
Alkali Halide ◽  
Alkali Halide Crystals
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