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Showing 1–11 of 11 results
Advanced filters: Author: J. Fernández-Rossier Clear advanced filters

  • The excitations that determine the low-temperature properties of ferromagnetic materials are called spin waves. Using a combination of inelastic electron tunnelling spectroscopy and numerical simulations, the spin waves occurring in a one-dimensional chain of iron atoms deposited on Cu2N are now imaged, and their dynamics examined.

    • A. Spinelli
    • B. Bryant
    • A. F. Otte
    Research
    Nature Materials
    Volume: 13, P: 782-785

  • Spin transfer torque—the transfer of angular momentum from a spin-polarized current to a ferromagnet’s magnetization—has already found commercial application in memory devices, but the underlying physics is still not fully understood. Researchers now demonstrate the crucial role played by the polarization of the laser light that generates the current; a subtle effect only evident when isolated from other influences such as heating.

    • P. Němec
    • E. Rozkotová
    • T. Jungwirth
    Research
    Nature Physics
    Volume: 8, P: 411-415

  • The control of atomic vacancies on a chlorine-terminated Cu(100) surface by means of a scanning tunnelling microscope tip makes it possible to construct a rewritable atomic memory of over a kilobyte in size with an information density as high as 502 terabits per square inch.

    • F. E. Kalff
    • M. P. Rebergen
    • A. F. Otte
    Research
    Nature Nanotechnology
    Volume: 11, P: 926-929

  • The nuclear spin of individual atoms is polarized by the tunnelling current from a scanning tunnelling microscope tip, enabling nuclear magnetic resonance to sense the local magnetic environment.

    • Kai Yang
    • Philip Willke
    • Christopher P. Lutz
    Research
    Nature Nanotechnology
    Volume: 13, P: 1120-1125

  • Decoupling the spins of a quantum system from environmental noises is the key to avoid decoherence. At the same time, electrical control over the spin state is a highly desirable feature for integration with present devices. Herein, Reale et al. demonstrate all-electrical spin drive and read-out of an individual Er atom with well decoupled 4f electrons.

    • Stefano Reale
    • Jiyoon Hwang
    • Yujeong Bae
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • A series of breakthroughs is making the fabrication of single-atom devices possible. Their behaviour is controlled by the quantum state of single dopants, and they hold promise for applications such as quantum bits, magnetometers and memories.

    • Joaquin Fernández Rossier
    News & Views
    Nature Materials
    Volume: 12, P: 480-481

  • One advantage of van der Waals materials is the ability to combine different materials in layers to form new heterostructures. Here, the authors investigate heterostructures of CrBr3 and MoSe2, and find that the ferromagnetism of CrBr3 enhances the valley dependent optical response of the MoSe2.

    • T. P. Lyons
    • D. Gillard
    • A. I. Tartakovskii
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-9

  • The resonating valence bond state is a spin-liquid state where spins continuously alter their singlet partners. Here Yang et al. use spin-1/2 atoms precision-placed by a scanning tunnelling microscope to create artificial quantum magnets exhibiting the resonating valence bond state.

    • Kai Yang
    • Soo-Hyon Phark
    • Christopher P. Lutz
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Scanning probe microscopy offers a creative way of fabricating structures by combining unmatched atomic-scale resolution and advanced functionalities. The authors utilize this technique to implement a novel spin chain configuration that, by means of a memory unit, can probe ultra-fast spin dynamics.

    • R. J. G. Elbertse
    • D. Coffey
    • A. F. Otte
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-5