Open AccessGrowth of Co Nanomagnet Arrays with Enhanced Magnetic Anisotropy
Author(s) -
Fernández Laura,
Ilyn Maxim,
Magaña Ana,
Vitali Lucia,
Ortega José Enrique,
Schiller Frederik
Publication year - 2016
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201600187
Subject(s) - nanomagnet , nanodot , scanning tunneling microscope , materials science , anisotropy , magnetic anisotropy , condensed matter physics , magnetic circular dichroism , superlattice , gadolinium , magnetism , nanotechnology , crystallography , nuclear magnetic resonance , magnetization , chemistry , optoelectronics , optics , magnetic field , physics , spectral line , quantum mechanics , astronomy , metallurgy
A trigon structure formed by submonolayer gadolinium deposition onto Au(111) is revealed as a robust growth template for Co nanodot arrays. Scanning Tunneling Microscopy and X‐Ray Magnetic Circular Dichroism measurements evidence that the Co nanoislands behave as independent magnetic entities with an out‐of‐plane easy axis of anisotropy and enhanced magnetic anisotropy values, as compared to other self‐organized Co nanodot superlattices. The large strain induced by the lattice mismatch at the interface between Co and trigons is discussed as the main reason for the increased magnetic anisotropy of the nanoislands.