Research Papers in Physics and Astronomy

 

Date of this Version

2016

Citation

Journal of Physics D: Applied Physics 49 (2016) 165005 (6pp)
doi:10.1088/0022-3727/49/16/165005

Comments

Creative Commons Attribution 3.0 licence

Abstract

Magnetic phase change memory (MAG PCM) consists of bits with different magnetic permeability values. The bits are read by measuring their effect on a magnetic probe field. Previously low permeability crystalline bits had been written in high permeability amorphous films of Metglas via laser heating. Here data is presented showing that by applying short laser pulses with the appropriate power to previously crystallized regions they can first be vitrified and then again crystallized. Thus, MAG PCM is rewriteable. Technical issues in processing the bits are discussed and results on thermal modeling are presented.

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