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Proximity induced magnetism in Pt layered with rare-earth:transition metal ferrimagnetic alloys [dataset] Open Access

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.


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Creator: Swindells, Charles 1
Contact person: Swindells, Charles 1
Data collector: Swindells, Charles 1
Editor: Swindells, Charles 1
Contact person: Atkinson, Del 1
Data collector: Atkinson, Del 1
Editor: Atkinson, Del 1
Data collector: Nicholson, Ben 1
Data collector: Inyang, Oto-obong 1
Data collector: Hase, Tom 2
Data collector: Choi, Yong 3
1 Durham University, UK
2 University of Warwick, UK
3 Argonne National Laboratory, USA
Engineering and Physical Sciences Research Council
Royal Society
U.S. Department of Energy
Research methods
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Proximity Induced magnetism
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Creative Commons Attribution 4.0 International (CC BY)

Durham University
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C.R. Swindells
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9 August 2020, 15:08:05
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