Method and equipment for magnetic nanopatterning of substrates
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United States of America Patent
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Nov 12, 2015
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Nov 12, 2014
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Abstract
Method for magnetic nanopatterning of a substrate 10, said substrate comprising a first ferromagnetic or ferrimagnetic phase FM and a second antiferromagnetic phase AF, said FM and AF phases being coupled by exchange bias in such a way to form an exchange bias system; said method comprising submitting said substrate to a magnetic field Hw so as to set the magnetization of said first phase FM in the direction of said magnetic field Hw, while heating predefined portions of said antiferromagnetic phase AF up to a writing temperature TW at which the exchange bias can be influenced, equipment for carrying out said method and substrate nanopatterned according to said method.
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