Spin-polarized scanning tunneling spectroscopy study of Fe nanomagnets on W(001)
- 1 June 2004
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 95 (11), 7025-7027
- https://doi.org/10.1063/1.1687276
Abstract
We have studied the magnetic states of self-organized Fe islands on W(001) by means of spin-polarized scanning tunneling spectroscopy (Sp-STS). Single-domain and vortex states in the nanoscale islands have been observed. The high-resolution magnetic images enable to experimentally determine the boundary between the single-domain and vortex states. The single-domain state was always found below a thickness of 6 nm and a diameter of 120 nm in Fe islands. The boundary directly observed with Sp-STS is consistent with theoretical predictions.Keywords
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