Electrical Transport Properties of Nb and Ga Double Substituted Fe2VAl Heusler Compounds

A. I. Voronin; I. A. Serhiienko; Ye Zh Ashim; V. L. Kurichenko; A. P. Novitskii; T. M. Inerbaev; R. Umetsu; V. V. Khovaylo

doi:10.1134/S1063782619130207

Electrical Transport Properties of Nb and Ga Double Substituted Fe₂VAl Heusler Compounds

A. I. Voronin, I. A. Serhiienko, Ye Zh Ashim, V. L. Kurichenko, A. P. Novitskii, T. M. Inerbaev, R. Umetsu, V. V. Khovaylo

IMR - Cooperative Research and Development Center for Advanced Materials

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Abstract: In this work the results of studying the electrical transport properties of Fe₂V_{1 –} _xNb_xAl_{1 –} _yGa_y (0.1 ≤ x ≤ 0.2 and 0.1 ≤ y ≤ 0.2) are presented. The specimens were fabricated using conventional arc-melting method followed by ball milling and spark plasma sintering. It was shown that dual-site substitution approach may lead to a more noticeable changes in the Seebeck coefficient and the electrical resistivity comparing to single-site substitution. Since such substitution can be assumed as isovalent one, the evolution of the electrical transport properties was mainly attributed to the changes in the band gap and charge carrier mobility values. To testify applicability of computational methods on these samples we have used well-known density functional theory and Boltzmann transport equation solving on one of the samples.

Original language	English
Pages (from-to)	1856-1859
Number of pages	4
Journal	Semiconductors
Volume	53
Issue number	13
DOIs	https://doi.org/10.1134/S1063782619130207
Publication status	Published - 2019 Dec 1

Keywords

Heusler compounds
spark plasma sintering
thermoelectric materials

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title = "Electrical Transport Properties of Nb and Ga Double Substituted Fe2VAl Heusler Compounds",

abstract = "Abstract: In this work the results of studying the electrical transport properties of Fe2V1 – xNbxAl1 – yGay (0.1 ≤ x ≤ 0.2 and 0.1 ≤ y ≤ 0.2) are presented. The specimens were fabricated using conventional arc-melting method followed by ball milling and spark plasma sintering. It was shown that dual-site substitution approach may lead to a more noticeable changes in the Seebeck coefficient and the electrical resistivity comparing to single-site substitution. Since such substitution can be assumed as isovalent one, the evolution of the electrical transport properties was mainly attributed to the changes in the band gap and charge carrier mobility values. To testify applicability of computational methods on these samples we have used well-known density functional theory and Boltzmann transport equation solving on one of the samples.",

keywords = "Heusler compounds, spark plasma sintering, thermoelectric materials",

author = "Voronin, {A. I.} and Serhiienko, {I. A.} and Ashim, {Ye Zh} and Kurichenko, {V. L.} and Novitskii, {A. P.} and Inerbaev, {T. M.} and R. Umetsu and Khovaylo, {V. V.}",

note = "Funding Information: This study was supported by Russian Foundation for Basic Research (project no. 18-38-20170). Theoretical calculations were partially performed at supercomputer cluster “Cherry” provided by the Materials Modeling and Development Laboratory of NUST “MISIS” (supported by a grant from the Ministry of Education and Science of the Russian Federation, no. 14.Y26.31.0005). The work of T.I. is performed under the state assignment of IGM SB RAS. Publisher Copyright: {\textcopyright} 2019, Pleiades Publishing, Ltd.",

year = "2019",

month = dec,

day = "1",

doi = "10.1134/S1063782619130207",

language = "English",

volume = "53",

pages = "1856--1859",

journal = "Semiconductors",

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publisher = "Pleiades Publishing",

number = "13",

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TY - JOUR

T1 - Electrical Transport Properties of Nb and Ga Double Substituted Fe2VAl Heusler Compounds

AU - Voronin, A. I.

AU - Serhiienko, I. A.

AU - Ashim, Ye Zh

AU - Kurichenko, V. L.

AU - Novitskii, A. P.

AU - Inerbaev, T. M.

AU - Umetsu, R.

AU - Khovaylo, V. V.

N1 - Funding Information: This study was supported by Russian Foundation for Basic Research (project no. 18-38-20170). Theoretical calculations were partially performed at supercomputer cluster “Cherry” provided by the Materials Modeling and Development Laboratory of NUST “MISIS” (supported by a grant from the Ministry of Education and Science of the Russian Federation, no. 14.Y26.31.0005). The work of T.I. is performed under the state assignment of IGM SB RAS. Publisher Copyright: © 2019, Pleiades Publishing, Ltd.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Abstract: In this work the results of studying the electrical transport properties of Fe2V1 – xNbxAl1 – yGay (0.1 ≤ x ≤ 0.2 and 0.1 ≤ y ≤ 0.2) are presented. The specimens were fabricated using conventional arc-melting method followed by ball milling and spark plasma sintering. It was shown that dual-site substitution approach may lead to a more noticeable changes in the Seebeck coefficient and the electrical resistivity comparing to single-site substitution. Since such substitution can be assumed as isovalent one, the evolution of the electrical transport properties was mainly attributed to the changes in the band gap and charge carrier mobility values. To testify applicability of computational methods on these samples we have used well-known density functional theory and Boltzmann transport equation solving on one of the samples.

AB - Abstract: In this work the results of studying the electrical transport properties of Fe2V1 – xNbxAl1 – yGay (0.1 ≤ x ≤ 0.2 and 0.1 ≤ y ≤ 0.2) are presented. The specimens were fabricated using conventional arc-melting method followed by ball milling and spark plasma sintering. It was shown that dual-site substitution approach may lead to a more noticeable changes in the Seebeck coefficient and the electrical resistivity comparing to single-site substitution. Since such substitution can be assumed as isovalent one, the evolution of the electrical transport properties was mainly attributed to the changes in the band gap and charge carrier mobility values. To testify applicability of computational methods on these samples we have used well-known density functional theory and Boltzmann transport equation solving on one of the samples.

KW - Heusler compounds

KW - spark plasma sintering

KW - thermoelectric materials

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JO - Semiconductors

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ER -

Electrical Transport Properties of Nb and Ga Double Substituted Fe₂VAl Heusler Compounds

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