Threshold interface magnetization required to induce magnetic proximity effect

Inyang, O.; Bouchenoire, L.; Nicholson, B.; Tokaç, M.; Rowan-Robinson, R.M.; Kinane, C.J.; Hindmarch, A.T.

doi:10.1103/physrevb.100.174418

Threshold interface magnetization required to induce magnetic proximity effect

Inyang, O.; Bouchenoire, L.; Nicholson, B.; Tokaç, M.; Rowan-Robinson, R.M.; Kinane, C.J.; Hindmarch, A.T.

Authors

Dr Oto Obong Inyang o.o.a.inyang@durham.ac.uk
Assistant Professor

L. Bouchenoire

Dr Ben Nicholson ben.nicholson@durham.ac.uk
Post Doctoral Research Associate

M. Tokaç

R.M. Rowan-Robinson

C.J. Kinane

Dr Aidan Hindmarch a.t.hindmarch@durham.ac.uk
Associate Professor

Abstract

Proximity-induced magnetization (PIM) has broad implications across interface-driven spintronics applications employing spin currents. We directly determine the scaling between PIM in Pt and the temperaturedependent interface magnetization in an adjacent ferromagnet (FM) using depth-resolved magnetometry. The magnetization due to PIM does not follow the generally expected linear scaling with the FM interface magnetization, as a function of temperature. Instead, it vanishes while the FM interface magnetization remains. The effective magnetic susceptibilities of heavy-metal (HM) layers are shown to give rise to the previously unexplained asymmetric PIM found in HM/FM/HM trilayers.

Citation

Inyang, O., Bouchenoire, L., Nicholson, B., Tokaç, M., Rowan-Robinson, R., Kinane, C., & Hindmarch, A. (2019). Threshold interface magnetization required to induce magnetic proximity effect. Physical Review B, 100(17), Article 174418. https://doi.org/10.1103/physrevb.100.174418

Journal Article Type	Article
Online Publication Date	Nov 13, 2019
Publication Date	Nov 1, 2019
Deposit Date	Nov 13, 2019
Publicly Available Date	Nov 13, 2019
Journal	Physical Review B
Print ISSN	2469-9950
Electronic ISSN	2469-9969
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	100
Issue	17
Article Number	174418
DOI	https://doi.org/10.1103/physrevb.100.174418

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Copyright Statement
Reprinted with permission from the American Physical Society: Inyang, O., Bouchenoire, L., Nicholson, B., Tokaç, M., Rowan-Robinson, R. M., Kinane, C. J. & Hindmarch, A. T. (2019). Threshold interface magnetization required to induce magnetic proximity effect. Physical Review B 100(17): 174418 © 2019 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.