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  Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy

Pereira, V. M., Wu, C. N., Knight, C.-A., Choa, A., Tjeng, L. H., & Altendorf, S. G. (2020). Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy. APL Materials, 8(7): 071114, pp. 1-10. doi:10.1063/5.0010339.

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 Creators:
Pereira, V. M.1, Author              
Wu, C. N.1, Author              
Knight, C.-A.1, Author              
Choa, A.1, Author              
Tjeng, L. H.2, Author              
Altendorf, S. G.3, Author              
Affiliations:
1Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
2Liu Hao Tjeng, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863452              
3Simone Altendorf, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863458              

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 Abstract: Relying on the magnetism induced by the proximity effect in heterostructures of topological insulators and magnetic insulators is one of the promising routes to achieve the quantum anomalous Hall effect. Here, we investigate heterostructures of Bi(2)Te(3)and Fe3O4. By growing two different types of heterostructures by molecular beam epitaxy, Fe(3)O(4)on Bi(2)Te(3)and Bi(2)Te(3)on Fe3O4, we explore differences in chemical stability, crystalline quality, electronic structure, and transport properties. We find the heterostructure Bi(2)Te(3)on Fe(3)O(4)to be a more viable approach, with transport signatures in agreement with a gap opening in the topological surface states.

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Language(s): eng - English
 Dates: 2020-07-202020-07-20
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000550194400001
DOI: 10.1063/5.0010339
 Degree: -

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Title: APL Materials
  Abbreviation : APL Mater.
Source Genre: Journal
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Publ. Info: AIP Scitation
Pages: - Volume / Issue: 8 (7) Sequence Number: 071114 Start / End Page: 1 - 10 Identifier: CoNE: https://pure.mpg.de/cone/journals/resource/2166-532X