Abstract
Magnetic hysteresis loops produced by ultrathin Fe films grown on stepped W(100) surfaces exhibit a region of negative differential magnetization when switching between magnetically saturated states. This interesting effect is explained by theoretical simulations based on a model Hamiltonian that includes both cubic and in-plane uniaxial anisotropy, and incorporates antiferromagnetic coupling between nanodomains which may result from a special growth condition used in the experiment.
- Received 30 January 2003
DOI:https://doi.org/10.1103/PhysRevB.67.174409
©2003 American Physical Society
