Science (American Association for the Advancement of Science), 2013-08, Vol.341 (6146), p.636-639
2013
Details
- Autor(en) / Beteiligte
- Titel
- Writing and Deleting Single Magnetic Skyrmions
- Ist Teil von
- Science (American Association for the Advancement of Science), 2013-08, Vol.341 (6146), p.636-639
- Ort / Verlag
- Washington, DC: American Association for the Advancement of Science
- Erscheinungsjahr
- 2013
- Link zum Volltext
- Quelle
- American Association for the Advancement of Science
- Beschreibungen/Notizen
- Topologically nontrivial spin textures have recently been investigated for spintronic applications. Here, we report on an ultrathin magnetic film in which individual skyrmions can be written and deleted in a controlled fashion with local spin-polarized currents from a scanning tunneling microscope. An external magnetic field is used to tune the energy landscape, and the temperature is adjusted to prevent thermally activated switching between topologically distinct states. Switching rate and direction can then be controlled by the parameters used for current injection. The creation and annihilation of individual magnetic skyrmions demonstrates the potential for topological charge in future information-storage concepts.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0036-8075eISSN: 1095-9203DOI: 10.1126/science.1240573Titel-ID: cdi_proquest_miscellaneous_1419342056
- Format
- –
- Schlagworte
- Condensed matter: electronic structure, electrical, magnetic, and optical properties, Crystal lattices, Electric current, Electric potential, Electrons, Exact sciences and technology, Fluid flow, Hypothetical particles, Information storage, Iron, Laboratory Equipment, Magnetic fields, Magnetic properties and materials, Magnetic properties of monolayers and thin films, Magnetic properties of surface, thin films and multilayers, Magnetic tunnel junctions, Magnetism, Magnetization, Magnets, Nuclear power generation, Palladium, Particle spin, Particle theory, Physics, Spintronics, Thin films, Topology, Tunneling