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Anomalous Hall effect measurement of novel magnetic multilayers

J. Appl. Phys. 106, 093904 (2009); doi:10.1063/1.3240346

Published 2 November 2009

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Seng-Kai Wong, Bing Hong Chia, Kumar Srinivasan, Randall Law, Ei-Leen Tan, Hang Khume Tan, Rachid Sbiaa, and S. N. Piramanayagam
Data Storage Institute, A*STAR (Agency for Science, Technology and Research), DSI Building, 5 Engineering Drive 1, Singapore 117608
We have used the method of anomalous Hall effect (AHE) to characterize magnetic thin film structures consisting of both perpendicular (normal-to-plane) and longitudinal (in-plane) anisotropies. AHE enables the simultaneous extraction of the perpendicular and in-plane magnetizations. The method is used to obtain the hysteresis loops and study the switching behavior of [Co/Pd] multilayers coupled to different seed layers. Results show that Cu seed layer helps to reduce the switching field distribution (SFD) and increase the coercivity while Co underlayer with an in-plane anisotropy helps to reduce the coercivity and increase the SFD. Furthermore, the magnetization in the Co in-plane layer is found to be pointing out of plane possibly due to exchange coupling with the [Co/Pd] multilayers. ©2009 American Institute of Physics
History: Received 24 July 2009; accepted 5 September 2009; published 2 November 2009
Permalink: http://link.aip.org/link/?JAPIAU/106/093904/1
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KEYWORDS and PACS

Keywords
PACS
  • 75.70.Cn
    Magnetic properties of interfaces
  • 75.30.Et
    Exchange and superexchange interactions in magnetically ordered materials
  • 72.15.Gd
    Galvanomagnetic and other magnetotransport effects (metals/alloys)
  • 75.70.Ak
    Magnetic properties of monolayers and thin films
  • 75.30.Gw
    Magnetic anisotropy
  • 75.60.Ej
    Magnetization curves, hysteresis, Barkhausen and related effects
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (19)
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