Spintronics Researchers Demonstrate How to Process Magnetic Vortices for Data Storage

Research continues in a field which involves using the spin and magnetism of electrons in solid-state devices — spintronics.

hackingbear shared this report from Nature:
Electric control of magnetic vortex dynamics in a reproducible way on an ultrafast time scale is a key element in the quest for efficient spintronic devices with low-energy consumption. Researchers in China and Germany demonstrated a simple method for controlling magnetic patterns that are useful for data storage and information processing.

Magnetic nanostructures are engineered as to host swirling magnetic vortices. The vortex intrinsic properties such as the vortex sense of rotations or polarity are well defined and thus are predestinate as digital information carriers. Furthermore, the magnetic nanostructures are readily integrated in existing computers. Chenglong Jia from Lanzhou University, Jamal Berakdar from Martin-Luther Universitat Halle-Wittenberg and their co-workers demonstrated how to process the so stored information swiftly by switching both the vortex’s sense of rotation and the orientation of its magnetic field using at a simple sequence of ultra-short, low average-energy electric-field pulses. The team believe that their method is scalable, non-invasive, reliable and reversible, fullfing thus important prerequisites for practical implementation.

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