AI Article Synopsis
- Magnetic skyrmions are unique magnetic structures that have potential for use in energy-efficient spintronic devices but have previously been limited to specific materials and low temperatures.
- Recent research has successfully demonstrated stable skyrmions at room temperature in ultrathin transition metal ferromagnets using advanced imaging techniques.
- The study shows the ability to create and control skyrmion lattices and move individual skyrmions quickly, paving the way for practical applications in spintronics.
Article Abstract
Magnetic skyrmions are topologically protected spin textures that exhibit fascinating physical behaviours and large potential in highly energy-efficient spintronic device applications. The main obstacles so far are that skyrmions have been observed in only a few exotic materials and at low temperatures, and fast current-driven motion of individual skyrmions has not yet been achieved. Here, we report the observation of stable magnetic skyrmions at room temperature in ultrathin transition metal ferromagnets with magnetic transmission soft X-ray microscopy. We demonstrate the ability to generate stable skyrmion lattices and drive trains of individual skyrmions by short current pulses along a magnetic racetrack at speeds exceeding 100 m s(-1) as required for applications. Our findings provide experimental evidence of recent predictions and open the door to room-temperature skyrmion spintronics in robust thin-film heterostructures.
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| http://dx.doi.org/10.1038/nmat4593 | DOI Listing |
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