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Whirlpools on the Nanoscale Could Multiply Magnetic Memory

By Guest PostJune 22, 2013Scienceadvanced light source, als, als beamline, berkeley lab, billionths, brno university, czech republic, dynamics, electron spin, magnetic contrast, magnetic memory, magnetic states, magnetic vortices, meter, nanoscale, peter fischer, polarity, san diego, spin orientation, Technology, university of california, vojtech uhlir, whirlpools, xray optics

At the Advanced Light Source, Berkeley Lab scientists join an international team to control spin orientation in magnetic nanodisks

“We spent 15 percent of home energy on gadgets in 2009, and we’re buying more gadgets all the time,” says Peter Fischer of the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab). Fischer lets you know right away that while it’s scientific curiosity that inspires his research at the Lab’s Advanced Light Source (ALS), he intends it to help solve pressing problems.

“What we’re working on now could make these gadgets perform hundreds of times better and also be a hundred times more energy efficient,” says Fischer, a staff scientist in the Materials Sciences Division. As a principal investigator at the Center for X-Ray Optics, he leads ALS beamline 6.1.2, where he specializes in studies of magnetism. (more…)

Solving a Spintronic Mystery

Berkeley Lab Researchers Resolve Controversy Over Gallium Manganese Arsenide that Could Boost Spintronic Performance

A long-standing controversy regarding the semiconductor gallium manganese arsenide, one of the most promising materials for spintronic technology, looks to have been resolved. Researchers with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) in collaboration with scientist from University of Notre Dame have determined the origin of the charge-carriers responsible for the ferromagnetic properties that make gallium manganese arsenide such a hot commodity for spintronic devices. Such devices utilize electron spin rather than charge to read and write data, resulting in smaller, faster and much cheaper data storage and processing. (more…)

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Whirlpools on the Nanoscale Could Multiply Magnetic Memory

Solving a Spintronic Mystery