Microscopic Imaging of Fe Magnetic Domains Exchange Coupled with Those in a NiO(001) Surface
- 17 July 2000
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 85 (3) , 646-649
- https://doi.org/10.1103/physrevlett.85.646
Abstract
We revealed the micromagnetic structure of an Fe thin film exchange interacting with the spins of a fully compensated (001) surface of antiferromagnetic NiO. The interface exchange interaction causes the Fe domains to follow the NiO domains. The Fe spin polarization is in plane and the spin polarization in each domain is roughly perpendicular to an easy-spin axis of the NiO. These results agree with numerically calculated spin directions. Our numerical results also show that the NiO spins at the interface cant from the easy-spin axis towards the Fe spin because of exchange coupling.Keywords
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