Magnetism and morphology of Co nanocluster superlattices on GdAu2/Au(111)-(13 x 13)
Cavallin, A.; Fernandez, L.; Ilyn, M.; Magana, A.; Ormaza, M.; Matena, M.; Vitali, L.; Ortega, J. E.; Grazioli, C.; Ohresser, P.; Rusponi, S.; Brune, H.; Schiller, F.
2014

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Abstract

We present a comprehensive study of the magnetism and morphology of an ultrahigh density array of Co nanoclusters self-assembled on the single atomic layer GdAu2 on Au(111) template surface. Combining scanning tunneling microscopy, x-ray magnetic circular dichroism, and magneto-optical Kerr effect measurements, we reveal a significant enhancement of the perpendicular magnetic anisotropy energy for noncoalesced single atomic layer nanoclusters compared to Co/Au(111). For coverages well beyond the onset of coalescence, we observe room-temperature in-plane magnetic remanence.

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Title Magnetism and morphology of Co nanocluster superlattices on GdAu2/Au(111)-(13 x 13)
Author(s) Cavallin, A. ; Fernandez, L. ; Ilyn, M. ; Magana, A. ; Ormaza, M. ; Matena, M. ; Vitali, L. ; Ortega, J. E. ; Grazioli, C. ; Ohresser, P. ; Rusponi, S. ; Brune, H. ; Schiller, F.
Published in Physical Review B
Pagination 6
Volume 90
Issue 23
Pages 235419
Date 2014
Publisher College Pk, American Physical Society
ISSN 1098-0121
DOI https://doi.org/10.1103/PhysRevB.90.235419
Other identifier(s) View record in Web of Science
Laboratories LNS
Record Appears in Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LNS - Laboratory of Nanostructures at Surfaces
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date 2015-02-20

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