This title appears in the Scientific Report :
2023
Please use the identifier:
http://hdl.handle.net/2128/34354 in citations.
Please use the identifier: http://dx.doi.org/10.1088/1361-6641/acb45f in citations.
Universal conductance fluctuations in a Bi 1.5 Sb 0.5 Te 1.8 Se 1.2 topological insulator nano-scaled Hall bar structure
Universal conductance fluctuations in a Bi 1.5 Sb 0.5 Te 1.8 Se 1.2 topological insulator nano-scaled Hall bar structure
We present low-temperature magnetotransport measurements characterizing the promising quaternary Bi1.5Sb0.5Te1.8Se1.2 topological insulator material. The measurements performed on a nano-Hall bar grown by selective-area molecular beam epitaxy revealed pronounced universal conductance fluctuations. I...
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Personal Name(s): | Zimmermann, Erik (Corresponding author) |
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Kölzer, Jonas / Schleenvoigt, Michael / Rosenbach, Daniel / Mussler, Gregor / Schüffelgen, Peter / Heider, Tristan / Plucinski, Lukasz / Schubert, Jürgen / Lüth, Hans / Grützmacher, Detlev / Schäpers, Thomas | |
Contributing Institute: |
Halbleiter-Nanoelektronik; PGI-9 Elektronische Eigenschaften; PGI-6 JARA-FIT; JARA-FIT |
Published in: | Semiconductor science and technology, 38 (2023) 3, S. 035010 - |
Imprint: |
Bristol
IOP Publ.
2023
|
DOI: |
10.1088/1361-6641/acb45f |
Document Type: |
Journal Article |
Research Program: |
Exploratory Qubits |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1088/1361-6641/acb45f in citations.
We present low-temperature magnetotransport measurements characterizing the promising quaternary Bi1.5Sb0.5Te1.8Se1.2 topological insulator material. The measurements performed on a nano-Hall bar grown by selective-area molecular beam epitaxy revealed pronounced universal conductance fluctuations. It is shown that these fluctuations originate from phase-coherent loops within the topologically protected surface states. Furthermore, the decay of the fluctuation amplitude with increasing temperatures suggests a quasi one-dimensional transport regime. |