This title appears in the Scientific Report :
2018
Please use the identifier:
http://dx.doi.org/10.1117/12.2322720 in citations.
Phase-coherent transport in topological insulator nanocolumns and nanoribbons
Phase-coherent transport in topological insulator nanocolumns and nanoribbons
The transport properties of topological insulator nanostructures prepared by selective-area molecular beam epitaxy is investigated. For the nanocolumn structures based on Sb2Te3/Bi2Te3-heterostructures pronounced universal conductance fluctuations are observed in the magnetoconductance, indicating p...
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Personal Name(s): | Schäpers, Thomas (Corresponding author) |
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Weyrich, Christian / Rosenbach, Daniel / Kölzer, Jonas / Schüffelgen, Peter / Mussler, Gregor / Jalil, Abdur Rehman / Lüth, Hans / Grützmacher, Detlev / Schmitt, Tobias / Schleenvoigt, Michael / Jaffrès, Henri (Editor) / Drouhin, Henri-Jean (Editor) / Wegrowe, Jean-Eric (Editor) / Razeghi, Manijeh (Editor) | |
Contributing Institute: |
Halbleiter-Nanoelektronik; PGI-9 |
Published in: |
Spintronics XI : [Proceedings] - SPIE, 2018. - ISBN 97815106203539781510620360 - doi:10.1117/12.2322720 |
Imprint: |
SPIE
2018
|
Physical Description: |
107320V-1 |
DOI: |
10.1117/12.2322720 |
Conference: | Spintronics XI, San Diego (United States), 2018-08-19 - 2018-08-23 |
Document Type: |
Contribution to a book Contribution to a conference proceedings |
Research Program: |
Controlling Spin-Based Phenomena |
Subject (ZB): | |
Publikationsportal JuSER |
The transport properties of topological insulator nanostructures prepared by selective-area molecular beam epitaxy is investigated. For the nanocolumn structures based on Sb2Te3/Bi2Te3-heterostructures pronounced universal conductance fluctuations are observed in the magnetoconductance, indicating phase-coherent transport. Furthermore, angle-dependent measurements indicate that the phase coherent loops are mainly oriented parallel to the substrate plane. Measurements on nanoribbons based on (Bi0.57Sb0.43)2Te3 revealed a resistance dip due to weak antilocalization as well as universal conductance fluctuations. Here, we also found indications, that the phase-coherent loops are predominantly oriented parallel to the quintuple layers forming the topological insulator. |