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Exchange-bias-like effect in L1(0) (111) FePt based pseudo spin valves
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
2010 (English)In: INTERNATIONAL CONFERENCE ON MAGNETISM (ICM 2009) / [ed] Goll, G; Lohneysen, HV; Loidl, A; Pruschke, T; Richter, M; Schultz, L; Surgers, C; Wosnitza, J, BRISTOL: IOP PUBLISHING LTD, DIRAC HOUSE , 2010, Vol. 200, UNSP 072110- p.Conference paper, Published paper (Refereed)
Abstract [en]

The coupling between hard FePt/CoFe and soft CoFe/NiFe layers through a Cu spacer has been studied in L1(0) (111) FePt(20)/CoFe(1.5)/Cu(3.5or4.5)/CoFe(2)/NiFe(3) (in nm) pseudo spin valves. The soft layer hysteresis loops exhibit clear shifts in the field axis (exchange bias-like) and a marked coercivity enhancement. The thickness of the Cu layer or the interface roughness influence the exchange bias properties of the systems. This interlayer coupling arises from the competition between dipolar and RKKY interactions between the layers.

Place, publisher, year, edition, pages
BRISTOL: IOP PUBLISHING LTD, DIRAC HOUSE , 2010. Vol. 200, UNSP 072110- p.
Series
Journal of Physics Conference Series, ISSN 1742-6588 ; 200
Keyword [en]
magnetoresistance, dependence
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-39660DOI: 10.1088/1742-6596/200/7/072110ISI: 000291321303038Scopus ID: 2-s2.0-77957066820OAI: oai:DiVA.org:kth-39660DiVA: diva2:440178
Conference
International Conference on Magnetism (ICM 2009). Karlsruhe, GERMANY. JUL 26-31, 2009
Available from: 2011-09-12 Created: 2011-09-12 Last updated: 2011-09-12Bibliographically approved

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