Magnetic skyrmions are tiny entities, manifesting in magnetic materials that consist of localized twists in the magnetization direction of the medium. Each skyrmion is highly stable because eliminating it requires untwisting the magnetization direction of the material, just as a knot on a string can only be untied by pulling the rest of the string out of the knot. Magnetic skyrmions are a promising candidate for next-generation magnetic storage devices because of their stability and tiny size—-with widths of 50 nanometers or less, they occupy only a fraction of the area of magnetic bits in current hard disks. For this reason, researchers have been intensively searching out materials that can contain magnetic skyrmions, and studying their electrical and magnetic properties.
from General Physics News - Science News, Physics News, Physics, Material Sciences, Science http://bit.ly/2UZMMnz
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