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Title: Direct observation of exchange bias related uncompensated spins at the CoO/Cu interface
Authors: Valev, Ventsislav ×
Gruyters, M
Kirilyuk, A
Rasing, T #
Issue Date: Feb-2006
Publisher: American physical soc
Series Title: Physical review letters vol:96 issue:6
Article number: 067206
Abstract: Magnetization-induced optical second harmonic generation (MSHG) from the exchange-biased CoO/Cu-(X)/Fe multilayer shows the presence of pinned uncompensated spins at the CoO/Cu interface. For increasing Cu spacer thickness, the exchange bias measured via the hysteresis loop shift diminishes and disappears at X=3.5 nm, while the MSHG signal still shows a strong magnetic contribution from the CoO interface. This indicates that the magnetic interaction between Fe and CoO layers is sufficiently strong to induce order in the antiferromagnetic layer even at a spacer thickness for which there is no observable hysteresis loop shift.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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