Journal article
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 and Te and also resides in the van der Waals gap between the quintuple layers of Bi2Te3. Combination of aberration-corrected scanningtransmission 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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 6.7MB, Terms of use)
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- Publisher copy:
- 10.1063/1.4971354
Authors
- Publisher:
- American Institute of Physics
- Journal:
- APL Materials More from this journal
- Volume:
- 4
- Issue:
- 12
- Pages:
- 126103-1
- Publication date:
- 2016-12-01
- Acceptance date:
- 2016-11-15
- DOI:
- ISSN:
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2166-532X
- Keywords:
- Pubs id:
-
pubs:659709
- UUID:
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uuid:f6bde7d5-c0f9-43de-8506-41c08b7e9a14
- Local pid:
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pubs:659709
- Source identifiers:
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659709
- Deposit date:
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2016-11-15
Terms of use
- Copyright holder:
- Hesjedal et al
- Copyright date:
- 2016
- Notes:
- © Author(s) 2016. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
- Licence:
- CC Attribution (CC BY)
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