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Exploiting shape anisotropy for binary magnetic memories

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Composite element magnetic barcodes are versatile, nonvolatile magnetic memories that exploit the shape anisotropy of, and dipolar interactions between, narrow magnetic strips to allow a binary code to be written under the application of an appropriate global magnetic field. By analysing magneto-optical Kerr effect and magnetic force microscopy measurements, the magnetic properties of these devices can be obtained and the writing of binary codes verified. In this talk, we will explore the design and manufacture of these memories, as well as discussing recent results from 32-bit devices.

This talk is part of the Surfaces, Microstructure and Fracture Group series.

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