| Autor: |
NAIR, SREEJITH M, AHMAD, AFAQ |
| Zdroj: |
Journal of Physics and Chemistry of Solids; February 1997, Vol. 58 Issue: 2 p331-333, 3p |
| Abstrakt: |
The order-disorder phase transition and ionic conduction in the pure and doped Ag2CdI4were investigated by X-ray diffraction and electrical conductivity techniques. The lower conductivity of Ag2CdI4in presence of Li+relative to pure Ag2CdI4is attributed to lattice contraction effecting lower mobility of ions. The Tl+doped Ag2CdI4exhibits higher conductivity in the high temperature phase and is found to be maximum at 8 mol% of Tl+concentration. This increase in conductivity is discussed in terms of additional free volume generated by the partial substitution of Ag+by larger Tl+. © 1997 Elsevier Science Ltd. All rights reserved |
| Databáze: |
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