dc.contributor.author
Goschew, A.
dc.contributor.author
Roca, R. C.
dc.contributor.author
Nishizawa, N.
dc.contributor.author
Munekata, H.
dc.contributor.author
Delimitis, A.
dc.contributor.author
Fumagalli, P.
dc.date.accessioned
2020-02-14T08:56:54Z
dc.date.available
2020-02-14T08:56:54Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/26669
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-26426
dc.description.abstract
We report on the successful spin injection from EuS/Co multilayers into (100) GaAs at low temperatures. The spin injection was verified by means of polarized electroluminescence (EL) emitted from AlGaAs/GaAs-based spin-light-emitting diodes in zero external magnetic field. Spin-polarized electrons were injected from prototype EuS/Co spin injector multilayers. The use of semiconducting and ferromagnetic EuS circumvents the impedance mismatch. The EL was measured in side emission with and without an external magnetic field. A circular polarization of 5% at 8 K and 0 T was observed. In view of the rather rough interface between the GaAs substrate and first EuS layer, improvement of the interface quality is expected to considerably enhance the injected electron spin polarization.
en
dc.format.extent
4 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
temperature measurement
en
dc.subject
polarization
en
dc.subject
superconducting magnets
en
dc.subject
Gallium arsenide
en
dc.subject
magnetic multilayers
en
dc.subject
spin polarized transport
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Spin injection from EuS/Co multilayers into GaAs detected by polarized electroluminescence
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
1400804
dcterms.bibliographicCitation.doi
10.1109/TMAG.2019.2895907
dcterms.bibliographicCitation.journaltitle
IEEE transactions on magnetics
dcterms.bibliographicCitation.number
7
dcterms.bibliographicCitation.volume
55
dcterms.bibliographicCitation.url
https://doi.org/10.1109/TMAG.2019.2895907
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
0018-9464
dcterms.isPartOf.eissn
1941-0069