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Experimental and density functional study of Mn doped Bi2Te3 topological insulator

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Experimental and density functional study of Mn doped Bi2Te3 topological insulator. / Ghasemi, Arsham; Kepaptsoglou, D; Figueroa, A. I.; Naydenov, Genadi Antonov; Hasnip, Philip James; Probert, Matthew Ian James; Ramasse, Q; van der Laan, G; Hesjedal, T; Lazarov, Vlado.

In: Materials, Vol. 4, No. 12, 1.4971354 , 01.12.2016, p. 126103.

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

Harvard

Ghasemi, A, Kepaptsoglou, D, Figueroa, AI, Naydenov, GA, Hasnip, PJ, Probert, MIJ, Ramasse, Q, van der Laan, G, Hesjedal, T & Lazarov, V 2016, 'Experimental and density functional study of Mn doped Bi2Te3 topological insulator', Materials, vol. 4, no. 12, 1.4971354 , pp. 126103. https://doi.org/10.1063/1.4971354

APA

Ghasemi, A., Kepaptsoglou, D., Figueroa, A. I., Naydenov, G. A., Hasnip, P. J., Probert, M. I. J., Ramasse, Q., van der Laan, G., Hesjedal, T., & Lazarov, V. (2016). Experimental and density functional study of Mn doped Bi2Te3 topological insulator. Materials, 4(12), 126103. [1.4971354 ]. https://doi.org/10.1063/1.4971354

Vancouver

Ghasemi A, Kepaptsoglou D, Figueroa AI, Naydenov GA, Hasnip PJ, Probert MIJ et al. Experimental and density functional study of Mn doped Bi2Te3 topological insulator. Materials. 2016 Dec 1;4(12):126103. 1.4971354 . https://doi.org/10.1063/1.4971354

Author

Ghasemi, Arsham ; Kepaptsoglou, D ; Figueroa, A. I. ; Naydenov, Genadi Antonov ; Hasnip, Philip James ; Probert, Matthew Ian James ; Ramasse, Q ; van der Laan, G ; Hesjedal, T ; Lazarov, Vlado. / Experimental and density functional study of Mn doped Bi2Te3 topological insulator. In: Materials. 2016 ; Vol. 4, No. 12. pp. 126103.

Bibtex - Download

@article{6850de0641204b01947142706cb06183,
title = "Experimental and density functional study of Mn doped Bi2Te3 topological insulator",
abstract = "We present a nanoscale structural and density functional study of the Mn doped 3D topological insulator Bi2Te3. X-ray absorption near edge structure show that Mn has valency of nominally 2+. Extended x-ray absorption fine structure spectroscopy in combination with electron energy loss spectroscopy (EELS) shows that Mn is a substitutional dopant of Bi andTe and also resides in the van der Waals gap between the quintuple layers of Bi2Te3. Combination of aberration-corrected scanning transmission electron microscopy and EELS show that Mn substitution of Te occurs in film regions with increased Mn concentration. First-principles calculations show that the Mn dopants favor octahedral sites and are ferromagnetically coupled.",
keywords = "DFT, density functional theory, topological insulators",
author = "Arsham Ghasemi and D Kepaptsoglou and Figueroa, {A. I.} and Naydenov, {Genadi Antonov} and Hasnip, {Philip James} and Probert, {Matthew Ian James} and Q Ramasse and {van der Laan}, G and T Hesjedal and Vlado Lazarov",
note = "{\textcopyright} Author(s) 2016. This is an author-produced version of the published paper. Uploaded in accordance with the publisher{\textquoteright}s self-archiving policy. Further copying may not be permitted; contact the publisher for details.",
year = "2016",
month = dec,
day = "1",
doi = "10.1063/1.4971354",
language = "English",
volume = "4",
pages = "126103",
journal = "Materials",
issn = "1996-1944",
publisher = "American Institute of Physics",
number = "12",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Experimental and density functional study of Mn doped Bi2Te3 topological insulator

AU - Ghasemi, Arsham

AU - Kepaptsoglou, D

AU - Figueroa, A. I.

AU - Naydenov, Genadi Antonov

AU - Hasnip, Philip James

AU - Probert, Matthew Ian James

AU - Ramasse, Q

AU - van der Laan, G

AU - Hesjedal, T

AU - Lazarov, Vlado

N1 - © Author(s) 2016. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - We present a nanoscale structural and density functional study of the Mn doped 3D topological insulator Bi2Te3. X-ray absorption near edge structure show that Mn has valency of nominally 2+. Extended x-ray absorption fine structure spectroscopy in combination with electron energy loss spectroscopy (EELS) shows that Mn is a substitutional dopant of Bi andTe and also resides in the van der Waals gap between the quintuple layers of Bi2Te3. Combination of aberration-corrected scanning transmission electron microscopy and EELS show that Mn substitution of Te occurs in film regions with increased Mn concentration. First-principles calculations show that the Mn dopants favor octahedral sites and are ferromagnetically coupled.

AB - We present a nanoscale structural and density functional study of the Mn doped 3D topological insulator Bi2Te3. X-ray absorption near edge structure show that Mn has valency of nominally 2+. Extended x-ray absorption fine structure spectroscopy in combination with electron energy loss spectroscopy (EELS) shows that Mn is a substitutional dopant of Bi andTe and also resides in the van der Waals gap between the quintuple layers of Bi2Te3. Combination of aberration-corrected scanning transmission electron microscopy and EELS show that Mn substitution of Te occurs in film regions with increased Mn concentration. First-principles calculations show that the Mn dopants favor octahedral sites and are ferromagnetically coupled.

KW - DFT

KW - density functional theory

KW - topological insulators

U2 - 10.1063/1.4971354

DO - 10.1063/1.4971354

M3 - Article

VL - 4

SP - 126103

JO - Materials

JF - Materials

SN - 1996-1944

IS - 12

M1 - 1.4971354

ER -

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