Anomalous magnetic anisotropy of ultrathin Co films grown at 30 K on Au(111)
- 1 January 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 61 (1) , 72-75
- https://doi.org/10.1103/physrevb.61.72
Abstract
Atomically thick cobalt layers are grown on Au(111) by ultrahigh vacuum low-temperature deposition. Low-temperature deposition precludes the formation of three-dimensional cobalt bilayers clusters that grow in arrays at room temperature. As a result, ferromagnetic Co films with an anomalous in-plane magnetic anisotropy are obtained for thicknesses above 1.6 ML. Annealing produces an irreversible reorientation of the anisotropy from in plane to out of plane. However, a preferential in-plane anisotropy can be stabilized by covering the Co with a gold film.Keywords
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