Radboud helps find a shortcut to flipping robust magnets

Paul van Gerven
Leestijd: 1 minuut

An international research team, including physicists from the Radboud University in Nijmegen, have discovered a much faster approach to create a pattern of spins in a magnet. This offers a new approach to achieve more efficient magnetic data storage.

Normally, the spins in a magnet all point in the same direction, which determines the north and south poles. But sometimes, the directions of the spins form vortex-like configurations known as skyrmions. These are interesting candidates for data storage, as they’re stable and only a few nanometers in size.

But storage obviously requires the ability to change the magnetic polarity. For a number of years, Radboud scientists have been looking for optimal ways to control magnetism with laser light. In this technique, very short pulses of light are fired at a magnetic material to reverse the spins in the material.

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