Galvanomagnetic properties of Bi85Sb15 thin films on different substrates
- Authors: Komarov V.A.1, Suslov A.V.1, Suslov M.V.1
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Affiliations:
- Alexander Herzen State Pedagogical University of Russia
- Issue: Vol 51, No 6 (2017)
- Pages: 702-705
- Section: XV International Conference “Thermoelectrics and Their Applications—2016”, St. Petersburg, November 15–16, 2016
- URL: https://journals.rcsi.science/1063-7826/article/view/199971
- DOI: https://doi.org/10.1134/S1063782617060173
- ID: 199971
Cite item
Abstract
The results of studying the galvanomagnetic properties of Bi85Sb15 thin films on substrates with various thermal-expansion coefficients are presented. The significant effect of the difference between the thermal expansions of film and substrate materials on the galvanomagnetic properties of the films is revealed. An analysis of the film properties within the two-band model shows that the difference in the properties of films on different substrates is associated with changes in the charge-carrier concentration and mobility. It is shown that a decrease in the thermal-expansion coefficient of the substrate material results in a decrease in the carrier concentration in the film composition under study, which indicates a significant difference in changes in the film band structure in comparison with changes occurring with increasing antimony concentration.
About the authors
V. A. Komarov
Alexander Herzen State Pedagogical University of Russia
Author for correspondence.
Email: va-komar@yandex.ru
Russian Federation, St. Petersburg, 191186
A. V. Suslov
Alexander Herzen State Pedagogical University of Russia
Email: va-komar@yandex.ru
Russian Federation, St. Petersburg, 191186
M. V. Suslov
Alexander Herzen State Pedagogical University of Russia
Email: va-komar@yandex.ru
Russian Federation, St. Petersburg, 191186