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Showing 1–12 of 12 results
Advanced filters: Author: André Kubetzka Clear advanced filters

  • A pump–probe approach allows the relaxation times of single spins to be measured.

    • Alexander Ako Khajetoorians
    • André Kubetzka
    News & Views
    Nature Nanotechnology
    Volume: 5, P: 830-831

  • Skyrmions are topologically protected field configurations that appear as solutions of continuous quantum-field theories. Recently, they have been observed in magnetic bulk alloys, where a lattice of skyrmions is stabilized by an external magnetic field. In contrast, this study finds evidence for a skyrmion lattice as a spontaneous ground state, encoded into a magnetic spin texture on the atomic scale.

    • Stefan Heinze
    • Kirsten von Bergmann
    • Stefan Blügel
    Research
    Nature Physics
    Volume: 7, P: 713-718

  • This combined experimental and theoretical study of a collinear antiferromagnet reveals a large magnetic exchange driven structural shift and non-coplanar domain wall junctions, which exhibit a topological orbital magnetization.

    • Vishesh Saxena
    • Mara Gutzeit
    • Kirsten von Bergmann
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-10

  • Atom diffusion on surfaces is a fundamental process, which is widely believed to be independent of magnetic interactions. Here, the authors demonstrate that the symmetry of the magnetic state restricts adatom movement to one dimension.

    • Felix Zahner
    • Soumyajyoti Haldar
    • André Kubetzka
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Antiferromagnets (AFM) exhibit faster magnetization dynamics, and have immunity to stray fields, making AFMs attractive for spintronic devices. Here, the authors investigate the behaviour of domain walls in AFMs, and find a new type domain wall, a superposition of two adjacent rotational domains.

    • Jonas Spethmann
    • Martin Grünebohm
    • André Kubetzka
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8

  • The electric field generated by the tip of a scanning tunnelling microscope can be exploited to locally and reversibly switch between a ferromagnetic state and a skyrmion.

    • Pin-Jui Hsu
    • André Kubetzka
    • Roland Wiesendanger
    Research
    Nature Nanotechnology
    Volume: 12, P: 123-126

  • Multi-Q states are 2D typically non-collinear spin textures that can be stabilized at the nanoscale and at zero magnetic field by interactions between multiple spins. Gutzeit et al. uncover a variety of multi-Q states in Fe/Rh atomic bilayers on the Ir(111) surface, including unexpected 2D collinear states.

    • Mara Gutzeit
    • André Kubetzka
    • Kirsten von Bergmann
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-11

  • Isolated skyrmions with diameters below 10 nm stabilized at zero magnetic field are of great technological relevance to the future spintronic applications. Here the authors report stabilization of zero field isolated skyrmions with diameters smaller than 5 nm in Rh/Co atomic bilayers on the Ir(111) surface.

    • Sebastian Meyer
    • Marco Perini
    • Stefan Heinze
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-8

  • Stabilization of skyrmions is one of the key issues in skyrmion-based spintronics. Here the authors demonstrate that hydrogenation can induce the formation of skyrmions in iron thin films, which provides an alternative way to tailor skyrmion states in low-dimensional magnetic materials.

    • Pin-Jui Hsu
    • Levente Rózsa
    • Roland Wiesendanger
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7

  • When skyrmions are travelling along a given path their motion is impaired by the skyrmion Hall effect which causes them to veer towards the edges of their track rather than to continue in a linear direction. To help counteract this issue, the authors investigate skyrmion edge interactions demonstrating that a ferromagnetic Co/Fe rim adjacent to the Pd/Fe bilayer on Ir(111) can prevent skyrmion annihilation at the film edge and also stabilizes zero-field skyrmions.

    • Jonas Spethmann
    • Elena Y. Vedmedenko
    • Kirsten von Bergmann
    ResearchOpen Access
    Communications Physics
    Volume: 5, P: 1-9