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  Focused ion beam modification of non-local magnon-based transport in yttrium iron garnet/platinum heterostructures

Schlitz, R., Helm, T., Lammel, M., Nielsch, K., Erbe, A., & Goennenwein, S. T. B. (2019). Focused ion beam modification of non-local magnon-based transport in yttrium iron garnet/platinum heterostructures. Applied Physics Letters, 114(25): 252401, pp. 1-5. doi:10.1063/1.5090209.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-77C0-D Version Permalink: http://hdl.handle.net/21.11116/0000-0004-7997-A
Genre: Journal Article

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 Creators:
Schlitz, Richard1, Author
Helm, Toni2, Author              
Lammel, Michaela1, Author
Nielsch, Kornelius1, Author
Erbe, Artur1, Author
Goennenwein, Sebastian T. B.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Microstructured Quantum Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_2466701              

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 Abstract: We study the impact of Ga ion exposure on the local and nonlocal magnetotransport response in heterostructures of the ferrimagnetic insulator yttrium iron garnet and platinum. In particular, we cut the yttrium iron garnet layer in between two electrically separated wires of platinum using a Ga ion beam and study the ensuing changes in the magnetoresistive response. We find that the nonlocal magnetoresistance signal vanishes when the yttrium iron garnet film between the Pt wires is fully cut, although the local spin Hall magnetoresistance signal remains finite. This observation corroborates the notion that pure spin currents carried by magnons are crucial for the nonlocal magnetotransport effects observed in magnetic insulator/metal nanostructures, while possible transport processes through the substrate can be ruled out.

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Language(s): eng - English
 Dates: 2019-06-242019-06-24
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000474433800003
DOI: 10.1063/1.5090209
 Degree: -

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Title: Applied Physics Letters
  Abbreviation : Appl. Phys. Lett.
Source Genre: Journal
 Creator(s):
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Publ. Info: Melville, NY : American Institute of Physics
Pages: - Volume / Issue: 114 (25) Sequence Number: 252401 Start / End Page: 1 - 5 Identifier: ISSN: 0003-6951
CoNE: https://pure.mpg.de/cone/journals/resource/954922836223