dc.contributor.author
Goschew, A.
dc.contributor.author
Scott, M.
dc.contributor.author
Fumagalli, P.
dc.date.accessioned
2018-06-08T03:17:43Z
dc.date.available
2016-10-10T08:55:32.048Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/14871
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-19060
dc.description.abstract
We report on magneto-optic Kerr measurements in polar geometry carried out on
a series of thin Co/EuS multilayers on suitable Co/Pd-multilayer substrates.
Thin Co/EuS multilayers of a few nanometers individual layer thickness usually
have their magnetization in plane. Co/Pd multilayers introduce a perpendicular
magnetic anisotropy in the Co/EuS layers deposited on top, thus making it
possible to measure magneto-optic signals in the polar geometry in remanence
in order to study exchange coupling. Magneto-optic Kerr-effect spectra and
hysteresis loops were recorded in the visible and ultraviolet photon-energy
range at room temperature. The EuS contribution to the magneto-optic signal is
extracted at 4.1 eV by combining hysteresis loops measured at different photon
energies with polar magneto-optic Kerr-effect spectra recorded in remanence
and in an applied magnetic field of 2.2 T. The extracted EuS signal shows
clear signs of antiferromagnetic coupling of the Eu magnetic moments to the Co
layers. This implies that the ordering temperature of at least a fraction of
the EuS layers is above room temperature proving that magneto-optic Kerr-
effect spectroscopy can be used here as a quasi-element-specific method.
en
dc.rights.uri
http://publishing.aip.org/authors/web-posting-guidelines
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik
dc.title
Verification of antiferromagnetic exchange coupling at room temperature using
polar magneto-optic Kerr effect in thin EuS/Co multilayers with perpendicular
magnetic anisotropy
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation
Applied Physics Letters. - 109 (2016), 6, Artikel Nr. 062401
dcterms.bibliographicCitation.doi
10.1063/1.4960794
dcterms.bibliographicCitation.url
http://dx.doi.org/10.1063/1.4960794
refubium.affiliation
Physik
de
refubium.mycore.fudocsId
FUDOCS_document_000000025521
refubium.resourceType.isindependentpub
no
refubium.mycore.derivateId
FUDOCS_derivate_000000007198
dcterms.accessRights.openaire
open access