Natural sulfur-containing minerals as topological insulators with a wide band gap

Abstract

The electronic structure of quaternary natural minerals PbBi ₂Te ₂S ₂ (aleksite), Pb ₂Bi ₂Te ₂S ₃ (saddlebackite), and PbBi ₄Te ₄S ₃ (C phase) has been theoretically studied. These compounds have a layered structure: aleksite and saddlebackite are formed by seven- and nine-layer blocks, respectively, and C phase consists of five- and seven-layer blocks separated by van der Waals gaps. It has been shown that all studied materials are three-dimensional topological insulators with a wide band gap in the electronic spectrum and have a high spin polarization. For these reasons, they are promising for applications.

Original language	English
Pages (from-to)	322-325
Number of pages	4
Journal	JETP Letters
Volume	96
Issue number	5
DOIs	https://doi.org/10.1134/S0021364012170158
Publication status	Published - Nov 2012
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1134/S0021364012170158

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@article{cd1263ed749d4c09b0ad6a79488cf33a,

title = "Natural sulfur-containing minerals as topological insulators with a wide band gap",

abstract = "The electronic structure of quaternary natural minerals PbBi 2Te 2S 2 (aleksite), Pb 2Bi 2Te 2S 3 (saddlebackite), and PbBi 4Te 4S 3 (C phase) has been theoretically studied. These compounds have a layered structure: aleksite and saddlebackite are formed by seven- and nine-layer blocks, respectively, and C phase consists of five- and seven-layer blocks separated by van der Waals gaps. It has been shown that all studied materials are three-dimensional topological insulators with a wide band gap in the electronic spectrum and have a high spin polarization. For these reasons, they are promising for applications.",

author = "Silkin, {I. V.} and Menshchikova, {T. V.} and Otrokov, {M. M.} and Eremeev, {S. V.} and Koroteev, {Yu M.} and Vergniory, {M. G.} and Kuznetsov, {V. M.} and Chulkov, {E. V.}",

year = "2012",

month = nov,

doi = "10.1134/S0021364012170158",

language = "English",

volume = "96",

pages = "322--325",

journal = "JETP Letters",

issn = "0021-3640",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "5",

}

TY - JOUR

T1 - Natural sulfur-containing minerals as topological insulators with a wide band gap

AU - Silkin, I. V.

AU - Menshchikova, T. V.

AU - Otrokov, M. M.

AU - Eremeev, S. V.

AU - Koroteev, Yu M.

AU - Vergniory, M. G.

AU - Kuznetsov, V. M.

AU - Chulkov, E. V.

PY - 2012/11

Y1 - 2012/11

N2 - The electronic structure of quaternary natural minerals PbBi 2Te 2S 2 (aleksite), Pb 2Bi 2Te 2S 3 (saddlebackite), and PbBi 4Te 4S 3 (C phase) has been theoretically studied. These compounds have a layered structure: aleksite and saddlebackite are formed by seven- and nine-layer blocks, respectively, and C phase consists of five- and seven-layer blocks separated by van der Waals gaps. It has been shown that all studied materials are three-dimensional topological insulators with a wide band gap in the electronic spectrum and have a high spin polarization. For these reasons, they are promising for applications.

AB - The electronic structure of quaternary natural minerals PbBi 2Te 2S 2 (aleksite), Pb 2Bi 2Te 2S 3 (saddlebackite), and PbBi 4Te 4S 3 (C phase) has been theoretically studied. These compounds have a layered structure: aleksite and saddlebackite are formed by seven- and nine-layer blocks, respectively, and C phase consists of five- and seven-layer blocks separated by van der Waals gaps. It has been shown that all studied materials are three-dimensional topological insulators with a wide band gap in the electronic spectrum and have a high spin polarization. For these reasons, they are promising for applications.

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U2 - 10.1134/S0021364012170158

DO - 10.1134/S0021364012170158

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EP - 325

JO - JETP Letters

JF - JETP Letters

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