Thermal Bleaching of V Bands at Room Temperature in Alkali Iodide Crystals Containing Excess Iodine
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概要
- 論文の詳細を見る
Thermal stability of V centers has been investigated at room temperature (RT) for additively colored alkali-iodide crystals by means of optical absorption measurements. V_2 and V_3 bands due to V centers in the crystal were gradually bleached by annealing at temperatures near RT. The bleaching rate of the bands is proportional to the square of the V-center concentration. The activation energies for bleaching of the V bands in KI and RbI crystals are estimated from the bleaching rates to be 0.85 ± 0.04 eV and 0.82 ± 0.03 eV, respectively. The V_2 bands in the crystals containing divalent cations bleach only weakly at RT. The effect of impurities, such as divalent cations, on the thermal stability of the V centers will be discussed.
- 社団法人日本物理学会の論文
- 2003-06-15
著者
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Harami T
Department Of Physical Sciences Faculty Of Science And Engineering Ritsumeikan University
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Harami Tadahiko
Department Of Physics Ritsumeikan University
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KATAOKA Mariko
Department of Physical Sciences, Faculty of Science and Engineering, Ritsumeikan University
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Harami Tadahiko
Department Of Physics Faculty Of Science And Engineering Ritsumeikan University
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Kataoka M
Nara Inst. Of Sci. And Technol. Nara
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Harami Tadahiko
Department of Physical Sciences, Faculty of Science and Engineering, Ritsumeikan University
関連論文
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- Growth of Alkali Halide Crystals from Aqueous Solutions
- Optical Properties of KI Crystals Containing MnO^_4 or MnO^-_4 Ions
- Thermal Bleaching of V Bands at Room Temperature in Alkali Iodide Crystals Containing Excess Iodine
- Optical Properties of Kl Crystals Containing MnO^2-_4 or MnO^-_4 Ions
- Luminescence of V-Type Centers in Potassium and Rubidium Iodide Crystals
- Luminescence of V-Type Centers in Potassium and Rubidium Iodide Crystals
- V Bands in RbI Crystals Containing Excess Iodine
- V Centers in KI Crystals Containing Excess Iodine
- Luminescent V-Type Centers in Alkali Iodide Crystals Containing Divalent Cations
- Optical Bleaching of V Centers at Liquid Nitrogen Temperature in KI Crystals Containing Excess Iodine