Local Magnetic Suppression of Topological Surface States in Bi2Te3 Nanowires

Gooth J, Zierold R, Sergelius P, Hamdou B, Garcia J, Damm C, Rellinghaus B, Pettersson HJ, Pertsova A, Canali C, Borg M, Nielsch K (2016)

Publication Type: Journal article

Publication year: 2016

Journal

ACS nano American Chemical Society

Book Volume: 10

Pages Range: 7180-7188

Journal Issue: 7

DOI: 10.1021/acsnano.6b03537

Abstract

Locally induced, magnetic order on the surface of a topological insulator nanowire could enable room-temperature topological quantum devices. Here we report on the realization of selective magnetic control over topological surface states on a single facet of a rectangular Bi2Te3 nanowire via a magnetic insulating Fe3O4 substrate. Low-temperature magnetotransport studies provide evidence for local time-reversal symmetry breaking and for enhanced gapping of the interfacial 1D energy spectrum by perpendicular magnetic-field components, leaving the remaining nanowire facets unaffected. Our results open up great opportunities for development of dissipation-less electronics and spintronics.

Involved external institutions

Universität Hamburg (UHH) DE Germany (DE) Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden DE Germany (DE) Lund University / Lunds universitet SE Sweden (SE) Linnaeus University (LNU) / Linnéuniversitetet SE Sweden (SE) IBM Zurich Research Laboratory CH Switzerland (CH)

How to cite

APA:

Gooth, J., Zierold, R., Sergelius, P., Hamdou, B., Garcia, J., Damm, C.,... Nielsch, K. (2016). Local Magnetic Suppression of Topological Surface States in Bi2Te3 Nanowires. ACS nano, 10(7), 7180-7188. https://doi.org/10.1021/acsnano.6b03537

MLA:

Gooth, Johannes, et al. "Local Magnetic Suppression of Topological Surface States in Bi2Te3 Nanowires." ACS nano 10.7 (2016): 7180-7188.

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