Moschel, A.
, Zangwill, A.
, Hyman, R.
and Stiles, M.
(1996),
Magnetization Reversal in Ultrathin Films with Monolayer-Scale Surface Roughness, Physical Review Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620472
(Accessed October 22, 2025)
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Magnetization Reversal in Ultrathin Films with Monolayer-Scale Surface Roughness
Published
Author(s)
A Moschel, , R Hyman,
Abstract
The intrinsic anisotropy of nominally flat, ultrathin ferromagnetic films typically is augmented by a uniaxial anisotropy at step edges. We report model calculations of hysteresis for such systems with in-plane magnetization and monolayer scale roughness. The reversal process is a combination of domain nucleation at step edges, expansion of these domains through morphological constrictions, and coherent rotation within domains. The initiation of reversal at well-separated step edges can explain the very small coercive fields measured for real ultrathin magnetic films.Citation
Physical Review Letters
Volume
77
Issue
17
Pub Type
Journals
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Created December 31, 1995, Updated October 12, 2021