Two-dimensional metal inclusions in a dielectric crystal

被引:0
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作者
R. V. Gainutdinov
A. S. Shcheulin
P. P. Fedorov
A. E. Angervaks
A. I. Ryskin
机构
[1] Russian Academy of Sciences,Shubnikov Institute of Crystallography
[2] National Research University of Information Technologies,Prokhorov General Physics Institute
[3] Mechanics,undefined
[4] and Optics,undefined
[5] Russian Academy of Sciences,undefined
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关键词
Colloidal Particle; Color Center; Anion Vacancy; Atomic Force Microscopy Study; Cleavage Surface;
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摘要
Highly aggregated color centers in crystals of a wide-band-gap calcium fluoride insulator heated in a reducing atmosphere of vapors of calcium metal cation (“additive coloration” of crystals) have been studied using spectroscopy and atomic-force microscopy methods. These centers are large aggregates of anion vacancies and electrons, which transform into metal structures. The evolution of these structures with increasing number of such components has been traced from individual particles with two-dimensional structure to large film fragments. It has been shown that fragments are concentrated in isolated planes {111}, which are cleavage planes of the crystal with high contents of highly aggregated centers.
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页码:1484 / 1491
页数:7
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