%0 Journal Article
%A Zimmermann, Erik
%A Kölzer, Jonas
%A Schleenvoigt, Michael
%A Rosenbach, Daniel
%A Mussler, Gregor
%A Schüffelgen, Peter
%A Heider, Tristan
%A Plucinski, Lukasz
%A Schubert, Jürgen
%A Lüth, Hans
%A Grützmacher, Detlev
%A Schäpers, Thomas
%T Universal conductance fluctuations in a Bi 1.5 Sb 0.5 Te 1.8 Se 1.2 topological insulator nano-scaled Hall bar structure
%J Semiconductor science and technology
%V 38
%N 3
%@ 0268-1242
%C Bristol
%I IOP Publ.
%M FZJ-2023-01918
%P 035010 -
%D 2023
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000923020200001
%R 10.1088/1361-6641/acb45f
%U https://juser.fz-juelich.de/record/1006967