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Structure and thermoelectric properties of β-FeSi2 doped with cobalt
- Authors: Solomkin F.Y.1, Sharenkova N.V.1, Isachenko G.N.1, Samunin A.Y.1, Shabаldin A.A.1, Kulik I.A.1, Arkharova N.A.2, Lukasov M.S.2
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Affiliations:
- Ioffe Physicotechnical Institute RAS
- NRC “Kurchatov Institute”
- Issue: No 7 (2024)
- Pages: 58-62
- Section: Articles
- URL: https://transsyst.ru/1028-0960/article/view/664794
- DOI: https://doi.org/10.31857/S1028096024070082
- EDN: https://elibrary.ru/EUYIAN
- ID: 664794
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Abstract
The possibility of replacing iron with cobalt in iron disilicide is studied. It has been shown, that in a wide range of compositions, an attempt to replace iron with cobalt leads to the formation of cobalt silicides. Using the composition Fe0.98Co0.015Si2 as an example, it is shown that during directional crystallization and subsequent annealing of samples, a regular microstructure is formed. Anisotropy of thermoelectric properties is observed along and across the crystallization axis of sample. In the region of low cobalt concentrations, upon transition to pure β-FeSi2, the sing and magnitude of the thermopower change sharply.
About the authors
F. Yu. Solomkin
Ioffe Physicotechnical Institute RAS
Email: f.solomkin@mail.ioffe.ru
Russian Federation, St. Peterburg
N. V. Sharenkova
Ioffe Physicotechnical Institute RAS
Email: f.solomkin@mail.ioffe.ru
Russian Federation, St. Peterburg
G. N. Isachenko
Ioffe Physicotechnical Institute RAS
Email: f.solomkin@mail.ioffe.ru
Russian Federation, St. Peterburg
A. Yu. Samunin
Ioffe Physicotechnical Institute RAS
Email: f.solomkin@mail.ioffe.ru
Russian Federation, St. Peterburg
A. A. Shabаldin
Ioffe Physicotechnical Institute RAS
Email: f.solomkin@mail.ioffe.ru
Russian Federation, St. Peterburg
I. A. Kulik
Ioffe Physicotechnical Institute RAS
Email: f.solomkin@mail.ioffe.ru
Russian Federation, St. Peterburg
N. A. Arkharova
NRC “Kurchatov Institute”
Email: f.solomkin@mail.ioffe.ru
Shubnikov Institute of Crystallography, Kurchatov Complex of Crystallography and Photonics
Russian Federation, MoscowM. S. Lukasov
NRC “Kurchatov Institute”
Author for correspondence.
Email: maxim-sl@list.ru
Shubnikov Institute of Crystallography, Kurchatov Complex of Crystallography and Photonics
Russian Federation, MoscowReferences
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