Perpendicular Spin Orientation in Ultrasmall Fe Islands on W(110)

R. Röhlsberger, J. Bansmann, V. Senz, K. L. Jonas, A. Bettac, O. Leupold, R. Rüffer, E. Burkel, and K. H. Meiwes-Broer
Phys. Rev. Lett. 86, 5597 – Published 11 June 2001
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Abstract

We have studied the magnetism of Ag-coated Fe islands on W(110) by nuclear resonant scattering of synchrotron radiation at the 14.4 keV resonance of 57Fe. Separated islands with an average diameter of 2.0 nm and monolayer thickness are formed at a Fe coverage of θ=0.57 bulk monolayers. Time spectra of the nuclear decay were measured in the temperature range from 4.5 to 300 K. We find strong evidence for perpendicular spin orientation, which most likely results from the interplay of shape anisotropy and elastic strain in the islands.

  • Received 7 November 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.5597

©2001 American Physical Society

Authors & Affiliations

R. Röhlsberger1, J. Bansmann1, V. Senz1, K. L. Jonas1, A. Bettac1, O. Leupold2, R. Rüffer2, E. Burkel1, and K. H. Meiwes-Broer1

  • 1Universität Rostock, Fachbereich Physik, Universitätsplatz 3, 18055 Rostock, Germany
  • 2European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble Cedex, France

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Vol. 86, Iss. 24 — 11 June 2001

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