Magnets

amusicsite · 31 Oct 2018

Seems to be a lot of research into magnets at the moment. They could help with batteries and data storage.

Professor of Chemistry, Richard Layfield, said: "Single-molecule magnets have been firmly stuck in the liquid-helium temperature regime for over a quarter of a century. Having previously proposed a blueprint for the molecular structure of a high-temperature SMM, we have now refined our design strategy to a level that allows access to the first such material.
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https://phys.org/news/2018-10-scientists-high-temperature-single-molecule-magnet.html

Normally the nuclear spin, which describes the magnetism of the atom's core, can only be detected in very large numbers. The findings, published today in the journal Science, show that this is now also possible for single atoms on a surface. To do that the team used a Scanning Tunneling Microscope at IBM Research, which consists of an atomically sharp metal tip and allows researchers to image and probe single atoms.
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https://phys.org/news/2018-10-breakthrough-accessing-tiny-magnet-core.html

amusicsite · 13 Nov 2018

https://m.phys.org/news/2018-10-flexy-flat-functional-magnets.html

Magnetic 2-D materials just a few atoms thick could provide a substrate for ever-smaller post-silicon electronics. An international research team led by Park Je-Geun at the Center for Correlated Electron Systems, within the Institute for Basic Science (IBS), has just published a Perspective Review paper in Nature presenting the latest achievements and future potential of 2-D magnetic van der Waals (vdW) materials, which were unknown until six years ago and have recently attracted worldwide attention.
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amusicsite · 14 Nov 2018

https://phys.org/news/2018-11-approach-magnetism-route-ultra-low-power-microchips.html

"When you pump hydrogen toward the magnet, the magnetization rotates," Tan says. "You can actually toggle the direction of the magnetization by 90 degrees by applying a voltage—and it's fully reversible." Since the orientation of the poles of the magnet is what is used to store information, this means it is possible to easily write and erase data "bits" in spintronic devices using this effect. Beach, whose lab discovered the original process for controlling magnetism through oxygen ions several years ago, says that initial finding unleashed widespread research on a new area dubbed "magnetic ionics," and now this newest finding has "turned on its end this whole field." Essentially, Beach explains, he and his team are "trying to make a magnetic analog of a transistor," which can be turned on and off repeatedly without degrading its physical properties.
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amusicsite · 29 Nov 2018

https://phys.org/news/2018-11-magnetic-materials-motors-future.html

Better magnets can also mean more efficient motors and we waste a lot of energy to driving motors. So this is an interesting twist, motors with better magnets that don't heat up so much, therefor not wasting energy. These could lead to smaller, lighter motors or more pull for the same size motor.

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Magnets

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Magnets

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