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We are investigating ferromagnetism at the limit of today's technology
and beyond. Magnetic anisotropy, domain configuration and domain wall
properties are considered in systems when film thickness and lateral dimensions
shrink.
We also consider ways of controlling these magnetic parameters by structural
modifications, which consist of well-defined steps and voids of geometrical
or chemical origin, or of lithographically fabricated dots of various
sizes and shapes. Using such an approach, we are acquiring a better understanding
of technologically relevant magnetic devices that necessarily deviate
from an ideally flat surface.
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IBM Research
