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Showing 1–9 of 9 results
Advanced filters: Author: A. Schäpers Clear advanced filters

  • Graphene quantum dots promise applications for spin and valley qubits; however a demonstration of phase coherent oscillations has been lacking. Here the authors report coherent charge oscillations and measurements of coherence times in highly tuneable double quantum dots in bilayer graphene.

    • K. Hecker
    • L. Banszerus
    • C. Stampfer
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Topological insulators possess dispersionless electronic surface states with perpendicular spin-momentum locking which may be utilised in spintronic devices. Here, the authors demonstrate p–n junctions formed from two topological insulator thin films, tuning the junction type by film thickness.

    • Markus Eschbach
    • Ewa Młyńczak
    • Detlev Grützmacher
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-7

  • A deep understanding of low-temperature transport properties of GeTe material remains a challenge. Here, the authors investigate phase-coherent phenomena in GeTe nanowire structures where the occurrence of magnetic flux-periodic oscillations come from the formation of a tubular hole accumulation layer.

    • Jinzhong Zhang
    • Pok-Lam Tse
    • Thomas Schäpers
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8

  • An in situ only fabrication process for networks of topological insulator–superconductor Josephson junctions with high interface transparency is introduced, which holds some potential for the production of future topological quantum computing networks.

    • Peter Schüffelgen
    • Daniel Rosenbach
    • Detlev Grützmacher
    Research
    Nature Nanotechnology
    Volume: 14, P: 825-831

  • GeSn alloys hold promise for spintronics and quantum computing due to their scalable fabrication and spin manipulation capabilities. Here, the authors study a two-dimensional hole gas in a Ge/GeSn quantum well, revealing enhanced spin-orbit interactions and g-factors, providing key insights for designing GeSn-based spintronic devices.

    • Prateek Kaul
    • Jan Karthein
    • Dan Buca
    ResearchOpen Access
    Communications Materials
    Volume: 6, P: 1-8

  • Topological surface states of three-dimensional topological insulators exhibit distinct magnetotransport properties. Here, a steering effect is demonstrated for three-terminal junctions, which is driven by an in-plane magnetic field and makes the junction act as a topoelectric current switch.

    • Jonas Kölzer
    • Kristof Moors
    • Thomas Schäpers
    ResearchOpen Access
    Communications Materials
    Volume: 2, P: 1-7