Phys. Rev. B 63, 140407(R) (2001) [4 pages]Magnetism of nanoscale Fe islands studied by spin-polarized scanning tunneling spectroscopy
We have performed low-temperature (T=15K) spin-polarized scanning tunneling spectroscopy of nanoscale Fe islands with a height of two atomic layers, grown on a stepped W(110) surface and surrounded by a closed monolayer (ML) Fe. These islands are single domain particles up to a coverage of 1.5 pseudomorphic ML and keep an antiferromagnetic out-of-plane ordering far beyond the onset of their coalescence. For small islands we observe a reorientation to in-plane magnetization between 2 and 3 nm island width due to exchange coupling to the in-plane magnetized ML. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.63.140407
DOI:
10.1103/PhysRevB.63.140407
PACS:
75.70.Ak, 07.79.Cz, 75.60.Ch
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