Proximity-induced magnetism in Pt layered with rare-earth–transition-metal ferrimagnetic alloys

Swindells, C.; Nicholson, B.; Inyang, O.; Choi, Y.; Hase, T.; Atkinson, D.

doi:10.1103/physrevresearch.2.033280

Proximity-induced magnetism in Pt layered with rare-earth–transition-metal ferrimagnetic alloys

Swindells, C.; Nicholson, B.; Inyang, O.; Choi, Y.; Hase, T.; Atkinson, D.

Authors

C. Swindells

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

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

Y. Choi

T. Hase

Professor Del Atkinson del.atkinson@durham.ac.uk
Professor

Abstract

The proximity-induced moment (PIM) in heavy metal layers may play a significant role in heterostructured spintronic systems. In particular, the PIM of a heavy metal adjacent to a magnetic layer has been linked to interfacial spin transport behavior. Element-resolved x-ray magnetic measurements were used to investigate PIM in Pt layered with two different rare-earth (RE):3d transition-metal (TM) ferrimagnetic alloys in which the net moment was dominated by either the RE or the TM at room temperature. We observed significant PIM in Pt confined to a 2-nm interfacial region for Pt/Co77Gd23 and Pt/(Fe50Co50 )77Gd23 and, in both cases, the PIM was parallel to the TM sublattice rather than the RE or the net moment. Our results highlight the prominence of the d − d mediated interactions between the Pt and the constituents of the ferrimagnetic RE:TM alloys over the net macroscopic moment.

Citation

Swindells, C., Nicholson, B., Inyang, O., Choi, Y., Hase, T., & Atkinson, D. (2020). Proximity-induced magnetism in Pt layered with rare-earth–transition-metal ferrimagnetic alloys. Physical Review Research, 2(3), Article 033280. https://doi.org/10.1103/physrevresearch.2.033280

Journal Article Type	Article
Acceptance Date	Jul 29, 2020
Online Publication Date	Aug 20, 2020
Publication Date	2020-08
Deposit Date	Aug 21, 2020
Publicly Available Date	Aug 21, 2020
Journal	Physical Review Research
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	2
Issue	3
Article Number	033280
DOI	https://doi.org/10.1103/physrevresearch.2.033280

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