Multiscale nature of hysteretic phenomena: Application to CoPt-type magnets

Details Multiscale nature of hysteretic phenomena: Application to CoPt-type magnets Multiscale nature of hysteretic phenomena: Application to CoPt-type magnets

2001-10-25

arxiv.org/abs/cond-mat/0110526v2

Phys. Rev. B 66, 144402 (2002).

Physics

Condensed Matter

Materials Science

4 pages (revtex 4), 2 color EPS figures

Scientific paper

10.1103/PhysRevB.66.144402

We suggest a workable approach for the description of multiscale magnetization reversal phenomena in nanoscale magnets and apply it to CoPt-type alloys. We show that their hysteretic properties are governed by two effects originating at different length scales: a peculiar splitting of domain walls and their strong pinning at antiphase boundaries. We emphasize that such multiscale nature of hysteretic phenomena is a generic feature of nanoscale magnetic materials.

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