Ceramics-Silikáty 40, (4) 145 - 148 (1996) |
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D.C. ELECTRICAL CONDUCTIVITY OF GE-S AND GE-V-S SYSTEM GLASSES, THE MEYER-NELDEL RULE
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Černošek Zdeněk
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Department of General and Inorganic Chemistry,
Faculty of Chemical Technology, University of Pardubice,
Náměstí Legií 565, 532 10 Pardubice
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D.C. electrical conductivity of Ge-S and Ge-V-S glassy systems were studied. It was found that so called Mott minimum metallic conductivity is function of activation energy of d.c. electrical conductivity for all studied glasses. The explanation based on idea of exponential tail of valence band edge and the p-type of electrical conductivity in extended states close to the mobility edge of vadence band was suggested. |
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