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|Author(s):||A Moschel; A Zangwill; R Hyman; Mark D. Stiles;|
|Title:||Magnetization Reversal in Ultrathin Films with Monolayer-Scale Surface Roughness|
|Published:||January 01, 1996|
|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|
|Pages:||pp. 3653 - 3656|
|PDF version:||Click here to retrieve PDF version of paper (294KB)|