Journal Article

FZJ-2021-04418

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Front Cover: Lifting the Spin‐Momentum Locking in Ultra‐Thin Topological Insulator Films (Adv. Quantum Technol. 11/2021)

Leis, A.FZJ* ; Schleenvoigt, M.FZJ* ; Cherepanov, V.FZJ* ; Lüpke, F.FZJ* ; Schüffelgen, P.FZJ* ; Mussler, G.FZJ* ; Grützmacher, D.FZJ* ; Voigtländer, B. (Corresponding author)FZJ* ; Tautz, F. S.FZJ*

2021
Wiley-VCH Verlag Weinheim

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Please use a persistent id in citations: http://hdl.handle.net/2128/29133  doi:10.1002/qute.202170111

Abstract: In article number 2100083, Arthur Leis, Bert Voigtländer and co-workers demonstrate nanoscale four-probe measurements on atomically thin topological insulator films. For this purpose, four individual scanning tunneling microscope tips are directly contacting individual terraces on the sample surface to quantify the thickness-dependent film conductivity. This enables the authors to detect a breakdown of spin-momentum locking in the topological surface state as a function of the film thickness. In the few-layer limit, this effect can realize helical edge modes along step edges with potential applications in spintronics and quantum computing.

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Contributing Institute(s):

1. Quantum Nanoscience (PGI-3)
2. Halbleiter-Nanoelektronik (PGI-9)
3. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. 5213 - Quantum Nanoscience (POF4-521) (POF4-521)
2. 5222 - Exploratory Qubits (POF4-522) (POF4-522)
3. 5221 - Advanced Solid-State Qubits and Qubit Systems (POF4-522) (POF4-522)
4. EXC 2004:  Matter and Light for Quantum Computing (ML4Q) (390534769) (390534769)
5. 2D Materialien : die Physik von van der Waals [Hetero-]Strukturen (2DMP) (422707584) (422707584)
6. Structure and Phonons of Heteroepitaxial Stacks of Weakly Interacting 2D Materials and Molecular Layers (A12) (385975694) (385975694)

Appears in the scientific report 2021

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Database coverage:
; Clarivate Analytics Master Journal List ; DEAL Wiley ; Emerging Sources Citation Index ; NCBI Molecular Biology Database ; Web of Science Core Collection

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