%0 Conference Paper
%A Schäpers, Thomas
%A Weyrich, Christian
%A Rosenbach, Daniel
%A Kölzer, Jonas
%A Schüffelgen, Peter
%A Mussler, Gregor
%A Jalil, Abdur Rehman
%A Lüth, Hans
%A Grützmacher, Detlev
%A Schmitt, Tobias
%A Schleenvoigt, Michael
%Y Jaffrès, Henri
%Y Drouhin, Henri-Jean
%Y Wegrowe, Jean-Eric
%Y Razeghi, Manijeh
%T Phase-coherent transport in topological insulator nanocolumns and nanoribbons
%I SPIE
%M FZJ-2018-05521
%P 107320V-1
%D 2018
%< Spintronics XI : [Proceedings] - SPIE, 2018. - ISBN 97815106203539781510620360 - doi:10.1117/12.2322720
%X The transport properties of topological insulator nanostructures prepared by selective-area molecular beam epitaxy is investigated. For the nanocolumn structures based on Sb2Te3/Bi2Te3-heterostructures pronounced universal conductance fluctuations are observed in the magnetoconductance, indicating phase-coherent transport. Furthermore, angle-dependent measurements indicate that the phase coherent loops are mainly oriented parallel to the substrate plane. Measurements on nanoribbons based on (Bi0.57Sb0.43)2Te3 revealed a resistance dip due to weak antilocalization as well as universal conductance fluctuations. Here, we also found indications, that the phase-coherent loops are predominantly oriented parallel to the quintuple layers forming the topological insulator.
%B Spintronics XI
%C 19 Aug 2018 - 23 Aug 2018, San Diego (United States)
Y2 19 Aug 2018 - 23 Aug 2018
M2 San Diego, United States
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
%9 Contribution to a conference proceedingsContribution to a book
%U <Go to ISI:>//WOS:000452820000009
%R 10.1117/12.2322720
%U https://juser.fz-juelich.de/record/852623