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Laser-induced heat can record information

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Ashley N. Paddock, [email protected]

A revolutionary magnetic recording method that uses an ultrashort heat pulse to switch magnetic polarity enables information processing hundreds of times faster than current hard-drive technology. Previously, it was believed that magnetic recording required the application of an external magnetic field, which inverted magnetic poles. The stronger the applied field, the faster a magnetic bit of information could be recorded. Experimental images showing the repeated deterministic switching of nano islands. Initially, the two nano islands have different magnetic orientations (black and...Read full article

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    Published: April 2012
    Alexey KimelCommunicationsEnglandEuropehard drive technologyinformation processingmagnetic fieldmagnetic pole inversionmagnetic polesmagnetic recordingRadboud University NijmegenResearch & TechnologyTech PulseThomas Ostlerultrashort heat pulseUniversity of YorkLasers

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