Lattice structure of the free surface of alkali halide crystals

1946 ◽  
Vol 65 (7) ◽  
pp. 521-528 ◽  
Author(s):  
E. J. W. Verwey
Keyword(s):  
Free Surface ◽  
Alkali Halide ◽  
Lattice Structure ◽  
Alkali Halide Crystals

AN EXAMINATION OF VERWEY'S MODEL FOR THE LATTICE STRUCTURE OF THE FREE SURFACE OF ALKALI HALIDE CRYSTALS

1956 ◽  
Vol 34 (3) ◽  
pp. 265-275 ◽  
Author(s):  
G. C. Benson ◽  
H. P. Schreiber ◽  
D. Patterson
Keyword(s):  
Free Surface ◽  
Surface Energy ◽  
Surface Structure ◽  
Alkali Halide ◽  
Mechanical Stability ◽  
Lattice Structure ◽  
Lithium Salts ◽  
Repulsive Potentials ◽  
Alkali Halide Crystals ◽  
Effect Of Surface

The Verwey model for the free surface structure of alkali halide crystals at 0° K. has been used to estimate the effect of surface distortion on the surface energy of these crystals. It appears that the contributions from distortion are considerably larger than previously reported. In the case of some lithium salts the corrected surface energy becomes negative; the mechanical stability of the solid is considered in the light of this. Several aspects of the Verwey model have been examined. These include the effect of various repulsive potentials and forms of distortion.

PHONON BROADENING OF EMISSION SPECTRA FOR STE AND AUGER-FREE LUMINESCENCE

2001 ◽  
Vol 15 (28n30) ◽  
pp. 4032-4035 ◽  
Author(s):  
V. N. MAKHOV ◽  
V. N. KOLOBANOV ◽  
M. KIRM ◽  
S. VIELHAUER ◽  
G. ZIMMERER
Keyword(s):  
Alkali Halide ◽  
Lattice Structure ◽  
Thermal Quenching ◽  
Emission Spectra ◽  
Luminescence Spectra ◽  
Phonon Modes ◽  
Exciton Emission ◽  
Different Types ◽  
Alkali Halide Crystals ◽  
Typical Temperature

The temperature dependencies of the bandwidths for self-trapped exciton emission spectra in several alkali halide crystals with high temperature of thermal quenching for self-trapped exciton emission (NaBr, KI, CsI) have been studied and compared with a typical temperature behavior of Auger-free luminescence spectra. It was shown that different phonon modes are responsible for broadening of emission band for different types of self-trapped excitons as well as for different bands in the spectrum of Auger-free luminescence. The features found indicate that the lattice structure of emitting state for Auger-free luminescence has most probably the on-center character.

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

Limiting Optical Frequencies in Alkali Halide Crystals

1961 ◽  
Vol 123 (6) ◽  
pp. 1968-1976 ◽  
Author(s):  
A. A. Maradudin ◽  
G. H. Weiss
Keyword(s):  
Alkali Halide ◽  
Alkali Halide Crystals
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