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Fizika i Tekhnika Poluprovodnikov, 2019, Volume 53, Issue 8, Pages 1047–1051
DOI: https://doi.org/10.21883/FTP.2019.08.47993.9122
(Mi phts5427)
 

Electronic properties of semiconductors

Some physical properties of the new intermetallic compound NbCd$_{2}$

V. N. Volodinab, Yu. Zh. Tuleusheva, E. A. Zhakanbaeva, A. A. Migunovaac, A. B. Nicenkob

a Nuclear Physics Institute of the Ministry of Energy of the Republic of Kazakhstan, Almaty
b AO "Institute of Metallurgy and Ore Beneficiation", Almaty, Kazakhstan
c Al-Farabi Kazakh National University
Abstract: Solid solutions of cadmium in niobium and NbCd$_{2}$ phase are formed by magnetron sputtering and coprecipitation on substrates moving relative to the flow of Nb and Cd particles. The NbCd$_{2}$ phase can be described by a tetragonal unit cell with the parameters $a$ = 0.84357 nm, $c$ = 0.54514 nm, and $c/a$ = 0.6426. A very high hole concentration in NbCd$_{2}$ is established by studying the coating absorption and transmission spectra corresponding to the intermetallic-compound composition near the fundamental absorption edge, determining the band gap, and measuring the carrier mobility. Such a concentration is characteristic of a strongly degenerate semiconductor or metal. The band gap is determined to be 1.26 eV. The variation in the concentration of carriers and their mobility depending on the cadmium concentration in coatings of the Nb–Cd system confirms the occurrence of the NbCd$_2$ phase.
Keywords: NbCd$_2$, intermetallic compound, band gap.
Funding agency Grant number
Ministry of Education and Science of the Republic of Kazakhstan AP05132506
AP05130933/ГФ5
АР05130967/ГФ5
This work was supported by the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan, projects nos. AR05132506, AR05130933/GF5, and AR05130967/GF5.
Received: 01.04.2019
Revised: 11.04.2019
Accepted: 11.04.2019
English version:
Semiconductors, 2019, Volume 53, Issue 8, Pages 1028–1032
DOI: https://doi.org/10.1134/S1063782619080219
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. N. Volodin, Yu. Zh. Tuleushev, E. A. Zhakanbaev, A. A. Migunova, A. B. Nicenko, “Some physical properties of the new intermetallic compound NbCd$_{2}$”, Fizika i Tekhnika Poluprovodnikov, 53:8 (2019), 1047–1051; Semiconductors, 53:8 (2019), 1028–1032
Citation in format AMSBIB
\Bibitem{VolTulZha19}
\by V.~N.~Volodin, Yu.~Zh.~Tuleushev, E.~A.~Zhakanbaev, A.~A.~Migunova, A.~B.~Nicenko
\paper Some physical properties of the new intermetallic compound NbCd$_{2}$
\jour Fizika i Tekhnika Poluprovodnikov
\yr 2019
\vol 53
\issue 8
\pages 1047--1051
\mathnet{http://mi.mathnet.ru/phts5427}
\crossref{https://doi.org/10.21883/FTP.2019.08.47993.9122}
\elib{https://elibrary.ru/item.asp?id=41129829}
\transl
\jour Semiconductors
\yr 2019
\vol 53
\issue 8
\pages 1028--1032
\crossref{https://doi.org/10.1134/S1063782619080219}
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