Spintronics Researchers Demonstrate How to Process Magnetic Vortices for Data Storage (nature.com) 5
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.
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.
Thread resuscitation (Score:2)
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Probably just need to frame a topic like magnetic storage properly for the Internet. [youtube.com]
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Almost new physics (Score:1)
This is incredible. Disks going from longitudinal magnetic fields to vertical magnetic fields enabled the development of tens of gigabyte drives; we're up to tens of terabytes now. If this can be turned into actual technology instead of a lab curiosity like Bose-Einstein condensates, exabyte limits on file sizes will seem as quaint as 32MB limits on MS-DOS 2 volumes seems now...
skyrmion reviews (Score:2)
It's cool, but this is a small piece to a big puzzle. For recent reviews of skyrmion spintronics have a look at Magnetic Skyrmions: Advances in Physics and Potential Applications [nature.com]by Al Fert et al or Perspective: Magnetic Skyrmions... [scitation.org]. Potential applications go way beyond magnetic storage btw.
The posted paper isn't from Nature, it's NPG Asia Materials, which is a good journal, but it's not Nature. The difference is that if this were in Nature it would be huge, but when it's in NPG Asia Materials (or Nature N