Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy
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 Bi2Te3 and Fe3O4. By growing two different types of het...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2020-07-01
|
| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0010339 |
| _version_ | 1819147191139172352 |
|---|---|
| author | V. M. Pereira C. N. Wu C.-A. Knight A. Choa L. H. Tjeng S. G. Altendorf |
| author_facet | V. M. Pereira C. N. Wu C.-A. Knight A. Choa L. H. Tjeng S. G. Altendorf |
| author_sort | V. M. Pereira |
| collection | DOAJ |
| description | 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 Bi2Te3 and Fe3O4. By growing two different types of heterostructures by molecular beam epitaxy, Fe3O4 on Bi2Te3 and Bi2Te3 on Fe3O4, we explore differences in chemical stability, crystalline quality, electronic structure, and transport properties. We find the heterostructure Bi2Te3 on Fe3O4 to be a more viable approach, with transport signatures in agreement with a gap opening in the topological surface states. |
| first_indexed | 2024-12-22T13:25:53Z |
| format | Article |
| id | doaj.art-343b55fa4c3c4ad49f3c71d601418061 |
| institution | Directory Open Access Journal |
| issn | 2166-532X |
| language | English |
| last_indexed | 2024-12-22T13:25:53Z |
| publishDate | 2020-07-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Materials |
| spelling | doaj.art-343b55fa4c3c4ad49f3c71d6014180612022-12-21T18:24:19ZengAIP Publishing LLCAPL Materials2166-532X2020-07-0187071114071114-1010.1063/5.0010339Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxyV. M. Pereira0C. N. Wu1C.-A. Knight2A. Choa3L. H. Tjeng4S. G. Altendorf5Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, GermanyMax Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, GermanyMax Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, GermanyMax Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, GermanyMax Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, GermanyMax Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, GermanyRelying 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 Bi2Te3 and Fe3O4. By growing two different types of heterostructures by molecular beam epitaxy, Fe3O4 on Bi2Te3 and Bi2Te3 on Fe3O4, we explore differences in chemical stability, crystalline quality, electronic structure, and transport properties. We find the heterostructure Bi2Te3 on Fe3O4 to be a more viable approach, with transport signatures in agreement with a gap opening in the topological surface states.http://dx.doi.org/10.1063/5.0010339 |
| spellingShingle | V. M. Pereira C. N. Wu C.-A. Knight A. Choa L. H. Tjeng S. G. Altendorf Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy APL Materials |
| title | Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy |
| title_full | Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy |
| title_fullStr | Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy |
| title_full_unstemmed | Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy |
| title_short | Interfacing topological insulators and ferrimagnets: Bi2Te3 and Fe3O4 heterostructures grown by molecular beam epitaxy |
| title_sort | interfacing topological insulators and ferrimagnets bi2te3 and fe3o4 heterostructures grown by molecular beam epitaxy |
| url | http://dx.doi.org/10.1063/5.0010339 |
| work_keys_str_mv | AT vmpereira interfacingtopologicalinsulatorsandferrimagnetsbi2te3andfe3o4heterostructuresgrownbymolecularbeamepitaxy AT cnwu interfacingtopologicalinsulatorsandferrimagnetsbi2te3andfe3o4heterostructuresgrownbymolecularbeamepitaxy AT caknight interfacingtopologicalinsulatorsandferrimagnetsbi2te3andfe3o4heterostructuresgrownbymolecularbeamepitaxy AT achoa interfacingtopologicalinsulatorsandferrimagnetsbi2te3andfe3o4heterostructuresgrownbymolecularbeamepitaxy AT lhtjeng interfacingtopologicalinsulatorsandferrimagnetsbi2te3andfe3o4heterostructuresgrownbymolecularbeamepitaxy AT sgaltendorf interfacingtopologicalinsulatorsandferrimagnetsbi2te3andfe3o4heterostructuresgrownbymolecularbeamepitaxy |