Email this article The effect of cycle deformation on the AC conductivity of (Bi0.3Sb0.7)2Te3 films
- Authors: Sulaimonov K.M.1
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Affiliations:
- Fergana Polytechnical Institute
- Issue: Vol 62, No 3 (2017)
- Pages: 493-495
- Section: Short Communications
- URL: https://bakhtiniada.ru/1063-7842/article/view/199164
- DOI: https://doi.org/10.1134/S1063784217030227
- ID: 199164
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Abstract
It has been found that the resistance of the (Bi0.3Sb0.7)2Te3 porous polycrystalline film fabricated by thermal vacuum evaporation at substrate temperature Ts ≤ 363 K drastically decreases near the threshold AC frequency ω0 ≈ 105 Hz as low as the resistance of dense films with Ts ≈ 423 K. After the action of N ≈ 105 cycles of mechanical deformation with amplitude ε = ±1 × 10–3 a.u., the film resistance increases by 1.5 times and the threshold frequency decreases in almost 102 times, which can qualitatively be accounted for by the model of microcontacting blocks.
About the authors
Kh. M. Sulaimonov
Fergana Polytechnical Institute
Author for correspondence.
Email: uzferfizika@mail.ru
Uzbekistan, Fergana, 150107
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