Journal of the Magnetics Society of Japan
Online ISSN : 1882-2932
Print ISSN : 1882-2924
ISSN-L : 1882-2924
Spin Electronics
Magnetoresistance in Bilayers of Heavy Metal and Non-collinear Antiferromagnet
K. OdaT. MoriyamaT. Ono
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JOURNALS OPEN ACCESS

2019 Volume 43 Issue 1

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Abstract

  We report on magnetoresistance measurements in a heavy metal/ Mn3Ir multilayers. After a post annealing process, we observed the magnetoresistance associated with the ordered crystalline structure of the Mn3Ir. The resistance change as a function of the strength as well as the direction of the applied field suggests that the magnetoresistance is partially related to a modification of the Néel order by the magnetic field. Our further detailed investigation revealed that there is an additional component of the resistance change, perhaps due to the non-collinear magnetic structure associated with the L12-ordered Mn3Ir, which cannot be accounted for by any conventional magnetoresistance effects.

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© 2019 The Magnetics Society of Japan
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