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Автор B P Chandra
Автор M S K Khokhar
Автор M Elyas
Автор S M D Rao
Дата выпуска 1990-01-14
dc.description The triboluminescence (TL) intensity of unirradiated Ba, Sr, Ca and Pb doped NaCl and LiF single crystals decreases with temperature and disappears completely at 105+or-5 and 180+or-10 degrees C respectively. The temperature T<sub>c</sub> at which TL disappears changes slightly with increasing concentration of the dopants. The temperature dependence of total TL intensity follows the relation I<sub>T</sub>=I<sub>T</sub><sup>0</sup>(1-T/T<sub>c</sub>)<sup>n</sup>, where I<sub>T</sub><sup>0</sup> is a constant and n lies between 0.5 and 0.6 for the unirradiated divalent impurity doped NaCl and LiF crystals. It is concluded that the decrease in the TL intensity with temperature may be primarily due to the decrease in charge density of the newly created surfaces. The increase in TL intensity with increasing dopant concentration is attributed to the increasing hardness of the crystals.
Формат application.pdf
Издатель Institute of Physics Publishing
Название The effect of temperature on the triboluminescence of Ba, Sr, Ca and Pb doped NaCl and LiF single crystals
Тип paper
DOI 10.1088/0022-3727/23/1/015
Electronic ISSN 1361-6463
Print ISSN 0022-3727
Журнал Journal of Physics D: Applied Physics
Том 23
Первая страница 90
Последняя страница 94
Аффилиация B P Chandra; Dept. of Postgraduate Studies & Res. in Phys., Rani Durgavati Univ., Jabalpur, India
Аффилиация M S K Khokhar; Dept. of Postgraduate Studies & Res. in Phys., Rani Durgavati Univ., Jabalpur, India
Аффилиация M Elyas; Dept. of Postgraduate Studies & Res. in Phys., Rani Durgavati Univ., Jabalpur, India
Аффилиация S M D Rao; Dept. of Postgraduate Studies & Res. in Phys., Rani Durgavati Univ., Jabalpur, India
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