Scientists at the University of Hamburg have successfully written and erased individual skyrmions for the first time, paving the way to an explosion in magnetic storage capacity.
First postulated as a theoretical particle by physicist Tony Skyrme in 1962, skyrmions have resisted giving up their secrets for many decades. Described as a magnetic vortex, a skyrmion is a two-dimensional knot-like structure which is considerably more stable than other magnetic structures – including those used in modern magnetic storage devices like hard drives. As a result, they can be shrink down to considerably smaller sizes before becoming unstable and losing their stored data.
Before they can replace traditional magnetic storage methods, however, they need to be readable and writeable. Over the last year, scientists have been successfully reading the topological charge of a skyrmion – but only now have they been successful in writing to them, creating and destroying skyrmions in order to store binary data.
‘We finally found a magnetic system in which we can locally switch between ordinary ferromagnetic order and a complex spin configuration,‘ explains Kirsten von Bergmann, senior scientist of the research group behind the discovery. In their testing, the scientists were able to address, read and erase four skyrmions for the first time – and while a four-bit storage system isn’t much use, it’s the first step on the path to breaking the superparamagnetic limit of magnetic storage.
Creating more stable magnetic structures will be a requirement if storage capacities are to increase: currently, magnetic storage systems are rapidly approaching the limit of density, meaning we’ll have to make hard drives physically larger if we want more storage. Using skyrmions, it’s theoretically possible to break through the current limitations of magnetic storage and create devices with a density many times higher than is currently possible.
The Latest on: Skyrmion
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- Spintronics Breakthrough: Unlocking the Power of Radial Vorticeson April 21, 2024 at 10:34 pm
A team at HZB has investigated a new, simple method at BESSY II that can be used to create stable radial magnetic vortices in magnetic thin films. In some materials, spins form complex magnetic struct ...
- Turbocharged Skyrmions: Accelerating Toward the Future of Computingon April 20, 2024 at 5:29 am
Scientists discovered that skyrmions, potential future bits for computer memory, can now move at speeds up to 900 m/s, a significant increase facilitated by the use of antiferromagnetic materials. An ...
- Skyrmions move at record speeds: A step towards the computing of the futureon April 19, 2024 at 5:45 pm
Scientists have discovered that the magnetic nanobubbles known as skyrmions can be moved by electrical currents, attaining record speeds up to 900 m/s. Anticipated as future bits in computer memory, ...
- Weird magnetic 'skyrmion' quasiparticle could be used as a bit in advanced computing memoryon April 18, 2024 at 11:00 am
Scientists want to replace electrons with so-called 'nanobubbles' — or skyrmions — to store data more densely and efficiently in advanced components that would replace RAM and flash storage.
- Scientists experimentally observe current-driven antiskyrmion slidingon April 18, 2024 at 6:57 am
Prof. Zhang Ying's group from the Institute of Physics of the Chinese Academy of Sciences (CAS), in collaboration with domestic universities and the Los Alamos National Laboratory in the United States ...
- Electrical control of magnetism by electric field and current-induced torqueson April 16, 2024 at 7:00 am
In a review article published in Reviews of Modern Physics, Fèlix Casanova from the Nanodevices group at CIC nanoGUNE, Prof. Albert Fert, Nobel Prize in Physics, and his colleagues review the state of ...
- Researchers create skyrmion-based memory technology for extremely low-power deviceson March 22, 2024 at 7:46 am
A research team led by the Agency for Science, Technology and Research (A*STAR) in partnership with National University of Singapore (NUS) has created an innovative microelectronic device that can ...
- Skyrmion SV Disordered (IMAGE)on October 14, 2021 at 4:51 pm
In a series of recent studies, scientists at SLAC, Stanford, Lawrence Berkeley National Laboratory and UC San Diego used an X-ray laser to discover new aspects of skyrmion behavior.
- Representations of skyrmion and bimeron (IMAGE)on August 5, 2021 at 9:05 am
Caption Skyrmion can be represented as a set of 3D vectors confined in 2D plane unwrapped from a unit spiny sphere. Bimeron, a topological transition state of skyrmion, can also be described by ...
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Skyrmion
- Spintronics Breakthrough: Unlocking the Power of Radial Vorticeson April 21, 2024 at 10:34 pm
A team at HZB has investigated a new, simple method at BESSY II that can be used to create stable radial magnetic vortices in magnetic thin films. In some materials, spins form complex magnetic struct ...
- Turbocharged Skyrmions: Accelerating Toward the Future of Computingon April 20, 2024 at 5:29 am
Scientists discovered that skyrmions, potential future bits for computer memory, can now move at speeds up to 900 m/s, a significant increase facilitated by the use of antiferromagnetic materials. An ...
- Skyrmions move at record speeds: A step towards the computing of the futureon April 19, 2024 at 5:45 pm
Scientists have discovered that the magnetic nanobubbles known as skyrmions can be moved by electrical currents, attaining record speeds up to 900 m/s. Anticipated as future bits in computer memory, ...
- Weird magnetic 'skyrmion' quasiparticle could be used as a bit in advanced computing memoryon April 18, 2024 at 11:00 am
Scientists want to replace electrons with so-called 'nanobubbles' — or skyrmions — to store data more densely and efficiently in advanced components that would replace RAM and flash storage.
- Scientists experimentally observe current-driven antiskyrmion slidingon April 18, 2024 at 6:57 am
Prof. Zhang Ying's group from the Institute of Physics of the Chinese Academy of Sciences (CAS), in collaboration with domestic universities and the Los Alamos National Laboratory in the United States ...
- Electrical control of magnetism by electric field and current-induced torqueson April 16, 2024 at 7:00 am
In a review article published in Reviews of Modern Physics, Fèlix Casanova from the Nanodevices group at CIC nanoGUNE, Prof. Albert Fert, Nobel Prize in Physics, and his colleagues review the state of ...
- Researchers create skyrmion-based memory technology for extremely low-power deviceson March 22, 2024 at 7:46 am
A research team led by the Agency for Science, Technology and Research (A*STAR) in partnership with National University of Singapore (NUS) has created an innovative microelectronic device that can ...
- Skyrmion SV Disordered (IMAGE)on October 14, 2021 at 4:51 pm
In a series of recent studies, scientists at SLAC, Stanford, Lawrence Berkeley National Laboratory and UC San Diego used an X-ray laser to discover new aspects of skyrmion behavior.
- Representations of skyrmion and bimeron (IMAGE)on August 5, 2021 at 9:05 am
Caption Skyrmion can be represented as a set of 3D vectors confined in 2D plane unwrapped from a unit spiny sphere. Bimeron, a topological transition state of skyrmion, can also be described by ...
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- Skyrmions move at record speeds: A step towards the computing of the futureon April 19, 2024 at 5:45 pm
Scientists have discovered that the magnetic nanobubbles known as skyrmions can be moved by electrical currents, attaining record speeds up to 900 m/s. Anticipated as future bits in computer memory, ...
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