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Showing 1–7 of 7 results
Advanced filters: Author: Marko Burghard Clear advanced filters

  • While the spin generation in topological insulators is well studied, little is known about the interaction of the spins with external stimuli. Here, Seifert et al. observe a helical, bias-dependent photoconductance at the lateral edges of topological Bi2Te2Se platelets for perpendicular incidence of light, distinct to common longitudinal photoconductance phenomena.

    • Paul Seifert
    • Kristina Vaklinova
    • Alexander W. Holleitner
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7

  • Molecular graphene nanoribbons hold promise for quantum experiments in single-electron transistors but require improvements in their debundling. Here, the authors demonstrate ultra-clean transport devices by enhancing nanoribbon solubility via bulky groups on the nanoribbon edges.

    • Wenhui Niu
    • Simen Sopp
    • Lapo Bogani
    ResearchOpen Access
    Nature Materials
    Volume: 22, P: 180-185

  • Spin-based electronics offers significantly improved efficiency, but a major challenge is the electric manipulation of spin. Here, Powalla et al find a large gate induced spinpolarization in graphene/WTe2 heterostructures, illustrating the potential of such heterostructures for spintronics.

    • Lukas Powalla
    • Jonas Kiemle
    • Marko Burghard
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-8

  • Scanning photocurrent microscopy has revealed that metal contacts lead to potential steps that act as transport barriers in graphene devices. The formation of p-type conducting edges surrounding a central n-type channel has also been observed at low carrier densities.

    • Eduardo J. H. Lee
    • Kannan Balasubramanian
    • Klaus Kern
    Research
    Nature Nanotechnology
    Volume: 3, P: 486-490

  • The interaction between graphene and the spins of molecular magnets grown on it has been studied. The coupling between graphene phonons, spins and Dirac fermions modifies—and may be used for controlling—the quantum spin dynamics.

    • Christian Cervetti
    • Angelo Rettori
    • Lapo Bogani
    Research
    Nature Materials
    Volume: 15, P: 164-168

  • Hyperbolic materials have unique optical properties such as negative refraction and highly directional polaritons, relevant in super-resolution imaging. Here, the topological insulator Bi2Se3 is shown to host hyperbolic edge-confined exciton polaritons that can be steered via engineered edge defects.

    • Robin Lingstädt
    • Nahid Talebi
    • Peter A. van Aken
    ResearchOpen Access
    Communications Materials
    Volume: 2, P: 1-11