Magnetic phases of ultrathin Fe grown on Cu(100) as epitaxial wedges
- 9 May 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 72 (19) , 3112-3115
- https://doi.org/10.1103/physrevlett.72.3112
Abstract
Magnetic wedges of Fe on Cu(100) are explored magneto-optically. In the region of 6–11 monolayers (ML) of fcc Fe grown at room temperature, in addition to a surface ferromagnetic layer with a Curie temperature ∼250 K, the Fe bulk is antiferromagnetic with a Néel temperature of ∼200 K. This fcc phase is stable only above a growth temperature of order ∼200 K, below which the ferromagnetic spin-reorientation transition occurs at ∼6 ML. The phase boundaries are delineated by cusps in the coercivity along the wedge.Keywords
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