Depth profile of uncompensated spins in an exchange bias system

Depth profile of uncompensated spins in an exchange bias system

We have used the unique spatial sensitivity of polarized neutron and soft x-ray beams in reflection geometry to measure the depth dependence of magnetization across the interface between a ferromagnet and an antiferromagnet. The net uncompensated magnetization near the interface responds to applied...

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Veröffentlicht in:Physical review letters 2005-07, Vol.95 (4), p.047201.1-047201.4, Article 047201
Hauptverfasser: ROY, S, FITZSIMMONS, M. R, ZHANG, X, CHESNEL, K, KORTRIGHT, J. B, SINHA, S. K, SCHULLER, Ivan K, PARK, S, DORN, M, PETRACIC, O, ROSHCHIN, Igor V, LI, Zhi-Pan, BATLLE, X, MORALES, R, MISRA, A
Format: Artikel
Sprache:eng
Schlagworte:
ANTIFERROMAGNETIC MATERIALS
COBALT
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cristal·lografia
Crystallography
ELECTRONS
Exact sciences and technology
EXCHANGE INTERACTIONS
FERROMAGNETIC MATERIALS
GEOMETRY
INTERFACES
Interfacial magnetic properties (multilayers, magnetic quantum wells, superlattices, magnetic heterostructures)
IRON COMPOUNDS
Magnetic properties and materials
Magnetic properties of surface, thin films and multilayers
MAGNETISM
MAGNETIZATION
Materials
MATERIALS SCIENCE
NEUTRON BEAMS
NEUTRON DIFFRACTION
Physics
Propietats magnètiques
REFLECTION
SOFT X RADIATION
SPIN
THIN FILMS
X-RAY DIFFRACTION
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Zusammenfassung:We have used the unique spatial sensitivity of polarized neutron and soft x-ray beams in reflection geometry to measure the depth dependence of magnetization across the interface between a ferromagnet and an antiferromagnet. The net uncompensated magnetization near the interface responds to applied field, while uncompensated spins in the antiferromagnet bulk are pinned, thus providing a means to establish exchange bias.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.95.047201