Irradiation-Induced Broadening of the F-Absorption Band in KCl

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概要

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• Earlier workers observed that in the initial stages of room-temperature F-band irradiation of additively-colored, freshly-quenched alkali halide crystals a low energy broadening of the F band appeared. Here this broadening in KCl was measured and similar results for two very different sodium concentrations were obtained. This indicates that sodium F_Δ centers are not responsible for the effect. The "resonance broadening" due to the dipolar interaction of two F centers was calculated. It was found that this mechanism could account for the observed phenomenon if most of the F centers were about 3 nearest neighbors apart, or if 5% of them were about 2 nearest neighbors apart. Published experimental results indicate that in the early stages of irradiation few of the F centers are this close together, although a number as small as 5% is not necessarily ruled out. Other possible explanations of the experimental results are discussed.

• 社団法人日本物理学会の論文
• 1965-10-05

著者

• Mizuno Hiroyuki

  Department of Bacteriology Osaka Dental University

• Fowler W.beall

  Department Of Mining Metallurgy And Petroleum Engineering University Of Illinois

• Mizuno Hiroyuki

  Department Of Physics And Materials Research Laboratory University Of Illinois

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