Nanoscience

  • Call for Abstracts: 3rd Euro Intelligent Materials

    © Christian-Albrechts-Universität Kiel (Germany)

    The 3rd European Symposium on Intelligent Materials will take place in Kiel (Germany) from 7th to 9th June 2017. Conference chairs are Christine Selhuber-Unkel and Eckhard Quandt from the Christian-Albrechts-Universität zu Kiel (Germany).

  • Magnetic Bits by Electric Fields

    Controlled deleting (left) and writing (right) of individual nanoscale magnetic skyrmions by local electric fields. Between the individual images the tip of a scanning tunneling microscope was properly positioned and the local electric field was raised for a short time up to +3 V/nm (left) or -3V/nm (right). A single atomic vacancy in the ultrathin iron film (dark contrast) indicates the extremely small scale of the written and deleted skyrmions (bright contrast). P.-J. Hsu und R. Wiesendanger, University of Hamburg, Germany

    Researchers now make use of local electric fields for writing and deleting individual nanoscale magnetic skyrmions. Physicists of the University of Hamburg in Germany have demonstrated for the first time the controlled writing and deleting of individual nanoscale magnetic knots – so called skyrmions – by applying local electric fields to an ultrathin film of iron as data storage medium. These tiny knots in the magnetization of ultrathin metallic films exhibit an exceptional stability and are highly promising candidates for future ultra-high density magnetic recording. So far, they could be manipulated by local spin-currents and magnetic fields only. Now the research group at the University of Hamburg, headed by Roland Wiesendanger, report on the first electric-field controlled manipulation of nanoscale magnetic skyrmions in the journal Nature Nanotechnology (online issue of November 7, 2016).

  • Nanotechnology Supports Treatment of Malignant Melanoma

    The cantilever bears the recognition sequence for the target mutation. If this is present in the sample, the corresponding segment of RNA binds to the cantilever, causing the latter to bend. University of Basel, Department of Physics

    Changes in the genetic make-up of tissue samples can be detected quickly and easily using a new method based on nanotechnology. This report researchers from the Swiss Nanoscience Institute, the University of Basel and the University Hospital Basel in first clinical tests with genetic mutations in patients with malignant melanoma. The journal Nano Letters has published the study.