Email this article Ionic Conductivity of AgBaSc(VO4)2 Crystals with Glaserite-Type Structure
- Authors: Sorokin N.I.1
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Affiliations:
- Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,” Russian Academy of Sciences
- Issue: Vol 64, No 1 (2019)
- Pages: 110-112
- Section: Physical Properties of Crystals
- URL: https://journals.rcsi.science/1063-7745/article/view/193639
- DOI: https://doi.org/10.1134/S1063774519010267
- ID: 193639
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Abstract
The electrical conductivity σdc of AgBaSc(VO4)2 vanadate crystals with glaserite structure (K3Na(SO4)2 type, sp. gr. P\(\bar {3}\)m1) has been investigated by impedance spectroscopy in the frequency range of 5–5 × 105 Hz and at temperatures from 505 to 835 K. A jump in the σdc value by a factor of ~2.5 is observed at 700–725 K in the σdc(T) curve, which indicates the existence of a first-order phase transition. The temperature range of the σdc jump coincides with that of the endothermic effect observed in AgBaSc(VO4)2 at ~723 K. The σdc value at 835 K is 7 × 10–5 S/cm. The electrical conductivity mechanism is related to the Ag+ ion transport in the AgBaSc(VO4)2 lattice.
About the authors
N. I. Sorokin
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics,”Russian Academy of Sciences
Author for correspondence.
Email: nsorokin1@yandex.ru
Russian Federation, Moscow, 119333
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