COPING WITH BROWNS PARADOX - PINNING AND NUCLEATION OF MAGNETIC DOMAIN-WALLS AT ANTIPHASE BOUNDARIES

The critical field for unpinning or nucleation of a domain wall in a ferromagnetic crystal at an antiphase boundary (APB) is calculated as a function of the magnetic coupling constant η across the APB. It turns out that for positive values of η pinning occurs and that for negative values there is very strong pinning and also nucleation. Copyright © 1979 by The lnstitutc of Electrical and Electronics Engineers, Inc.