TY  - JOUR
AU  - Behner, Gerrit
AU  - Moors, Kristof
AU  - Zhang, Yong
AU  - Schleenvoigt, Michael
AU  - Rupp, Alina
AU  - Zimmermann, Erik
AU  - Jalil, Abdur Rehman
AU  - Schüffelgen, Peter
AU  - Lüth, Hans
AU  - Grützmacher, Detlev
AU  - Schäpers, Thomas
TI  - In-plane magnetic field driven conductance modulations in topological insulator kinks
JO  - Physical review / B
VL  - 109
IS  - 15
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2024-05733
SP  - 155429
PY  - 2024
AB  - We present low-temperature magnetoconductance measurements on Bi1.5⁢Sb0.5⁢Te1.8⁢Se1.2 kinks with ribbon-shaped legs. The conductance displays a clear dependence on the in-plane magnetic field orientation. The conductance modulation is consistent with orbital effect-driven trapping of the topological surface states on different side facets of the legs of the kink, which affects their transmission across the kink. This magnetic field driven trapping and conductance pattern can be explained with a semiclassical picture and is supported by quantum transport simulations. The interpretation is corroborated by varying the angle of the kink and analyzing the temperature dependence of the observed magnetoconductance pattern, indicating the importance of phase coherence along the cross-section perimeter of the kink legs.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001229759600005
DO  - DOI:10.1103/PhysRevB.109.155429
UR  - https://juser.fz-juelich.de/record/1031553
ER  -