CeB6 thin films produced on different substrates by electron-beam deposition
- Authors: Kuzanyan A.A.1, Kuzanyan A.S.1, Badalyan G.R.1, Petrosyan S.I.1, Vardanyan V.O.1, Gurin V.N.2, Volkov M.P.2, Pilosyan S.K.3
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Affiliations:
- Institute for Physical Research
- Ioffe Institute
- Lebedev Physical Institute
- Issue: Vol 51, No 8 (2017)
- Pages: 999-1001
- Section: XV International Conference “Thermoelectrics and Their Applications—2016”, St. Petersburg, November 15–16, 2016
- URL: https://journals.rcsi.science/1063-7826/article/view/200774
- DOI: https://doi.org/10.1134/S1063782617080176
- ID: 200774
Cite item
Abstract
Films of cerium hexaboride, a material promising for use in thermoelectric devices at liquidhelium temperatures, are produced by electron-beam deposition. Deposition is carried out from ceramic targets onto insulator, semiconductor, and metal substrates at different temperatures. The microstructure, the elemental and phase compositions, the temperature dependences of the resistivity and the Seebeck coefficient are thoroughly studied. CaB6-structured films, for which the structure is characteristic of cerium hexaboride and the elemental composition is close to the stoichiometric composition, are obtained. At low temperatures, the resistivity of the films is somewhat higher than that of single-crystal samples, and the Seebeck coefficient is close to the corresponding coefficient for single-crystal samples. The main cause of the difference between the resistance values is a high concentration of oxygen impurity detected in the films.
About the authors
A. A. Kuzanyan
Institute for Physical Research
Author for correspondence.
Email: astghik.kuzanyan@gmail.com
Armenia, Ashtarak, 0203
A. S. Kuzanyan
Institute for Physical Research
Email: astghik.kuzanyan@gmail.com
Armenia, Ashtarak, 0203
G. R. Badalyan
Institute for Physical Research
Email: astghik.kuzanyan@gmail.com
Armenia, Ashtarak, 0203
S. I. Petrosyan
Institute for Physical Research
Email: astghik.kuzanyan@gmail.com
Armenia, Ashtarak, 0203
V. O. Vardanyan
Institute for Physical Research
Email: astghik.kuzanyan@gmail.com
Armenia, Ashtarak, 0203
V. N. Gurin
Ioffe Institute
Email: astghik.kuzanyan@gmail.com
Russian Federation, St. Petersburg, 194021
M. P. Volkov
Ioffe Institute
Email: astghik.kuzanyan@gmail.com
Russian Federation, St. Petersburg, 194021
S. Kh. Pilosyan
Lebedev Physical Institute
Email: astghik.kuzanyan@gmail.com
Russian Federation, Moscow, 119991