Vertically stacked Bi 2 Se 3/MoTe 2 heterostructure with large band offsets for nanoelectronics

L Tao, B Yao, Q Yue, Z Dan, P Wen, M Yang, Z Zheng… - Nanoscale, 2021 - pubs.rsc.org
In recent years, two-dimensional material-based tunneling heterojunctions are emerging as
a multi-functional architecture for logic circuits and photodetection owing to the flexible …

Aharonov-bohm interference and phase-coherent surface-state transport in topological insulator rings

G Behner, AR Jalil, D Heffels, J Kölzer, K Moors… - Nano …, 2023 - ACS Publications
We present low-temperature magnetotransport measurements on selectively grown Sb2Te3-
based topological insulator ring structures. These devices display clear Aharonov-Bohm …

Emergence of large quantum oscillation frequencies in thin flakes of the kagome superconductor

W Zhang, L Wang, CW Tsang, X Liu, J Xie, WC Yu… - Physical Review B, 2022 - APS
Kagome metals AV 3 Sb 5 (A= K, Rb, and Cs) are recently discovered platforms featuring an
unusual charge-density-wave (CDW) order and superconductivity. The electronic band …

Top-down fabrication of bulk-insulating topological insulator nanowires for quantum devices

M Rößler, D Fan, F Münning, HF Legg… - Nano Letters, 2023 - ACS Publications
In a nanowire (NW) of a three-dimensional topological insulator (TI), the quantum
confinement of topological surface states leads to a peculiar sub-band structure that is useful …

Robust and fragile Majorana bound states in proximitized topological insulator nanoribbons

D Heffels, D Burke, MR Connolly, P Schüffelgen… - Nanomaterials, 2023 - mdpi.com
Topological insulator (TI) nanoribbons with proximity-induced superconductivity are a
promising platform for Majorana bound states (MBSs). In this work, we consider a detailed …

Selective-Area Epitaxy of Bulk-Insulating (BixSb1–x)2Te3 Films and Nanowires by Molecular Beam Epitaxy

G Lippertz, O Breunig, R Fister, A Uday… - … Applied Materials & …, 2024 - ACS Publications
Selective-area epitaxy (SAE) is a useful technique to grow epitaxial films with a desired
shape on a prepatterned substrate. Although SAE of patterned topological-insulator (TI) thin …

In-plane magnetic field driven conductance modulations in topological insulator kinks

G Behner, K Moors, Y Zhang, M Schleenvoigt, A Rupp… - Physical Review B, 2024 - APS
We present low-temperature magnetoconductance measurements on Bi 1.5 Sb 0.5 Te 1.8
Se 1.2 kinks with ribbon-shaped legs. The conductance displays a clear dependence on the …

Topological Insulator Nanowires Made by AFM Nanopatterning: Fabrication Process and Ultra Low‐Temperature Transport Properties

DS Yakovlev, AV Frolov, IA Nazhestkin… - Advanced Physics …, 2024 - Wiley Online Library
Topological insulator nanostructures became an essential platform for studying novel
fundamental effects emerging at the nanoscale. However, conventional nanopatterning …

Multiple Andreev reflections in topological insulator nanoribbons

RH Kim, NH Kim, B Kim, Y Hou, D Yu, YJ Doh - Current Applied Physics, 2022 - Elsevier
Superconducting proximity junctions made of topological insulator (TI) nanoribbons (NRs)
provide a useful platform for studying topological superconductivity. We report on the …

Optimal conditions for observing fractional Josephson effect in topological Josephson junctions

Y Jang, YJ Doh - Journal of the Korean Physical Society, 2021 - Springer
Abstract Topological Josephson junctions (JJs), which contain Majorana bound states, are
expected to exhibit 4 π-periodic current–phase relation, thereby resulting in doubled …