Drew is a freelance science and technology journalist with 20 years of experience. After growing up knowing he wanted to change the world, he realized it was easier to write about other people changing it instead.
Scientists have discovered a new mechanism in which a concentrated laser beam can change the magnetic state of a solid material. The finding could one day be harnessed in ultrafast computing memory, the researchers say.
Although the discovery builds on the field known as"magneto-optics," this represents a new paradigm because scientists didn't previously understand that the magnetic component of a rapidly oscillating light wave can control magnets, he said. The equation describes the characteristics of this interaction.
The new finding is more relevant for a technology called magnetoresistive random access memory , which is a non-volatile memory more commonly used in spacecraft as well as military and other industrial applications, according to MRAM-info. Interaction between a magnetic material and radiation is well established when they are in equilibrium, but less is known about this relationship when they are not in equilibrium. It's also an area that overlaps with the weird laws of quantum mechanics, which are being harnessed to build quantum computers.
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