Magnon detection using a ferroic collinear multilayer spin valve

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2018
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Cramer, Joel
Fuhrmann, Felix
Gall, Vanessa
Niizeki, Tomohiko
Ramos, Rafael
Qiu, Zhiyong
Hou, Dazhi
et al.
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Nature communications. 2018, 9(1), 1089. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-03485-5
Zusammenfassung

Information transport and processing by pure magnonic spin currents in insulators is a promising alternative to conventional charge-current-driven spintronic devices. The absence of Joule heating and reduced spin wave damping in insulating ferromagnets have been suggested for implementing efficient logic devices. After the successful demonstration of a majority gate based on the superposition of spin waves, further components are required to perform complex logic operations. Here, we report on magnetization orientation-dependent spin current detection signals in collinear magnetic multilayers inspired by the functionality of a conventional spin valve. In Y3Fe5O12|CoO|Co, we find that the detection amplitude of spin currents emitted by ferromagnetic resonance spin pumping depends on the relative alignment of the Y3Fe5O12and Co magnetization. This yields a spin valve-like behavior with an amplitude change of 120% in our systems. We demonstrate the reliability of the effect and identify its origin by both temperature-dependent and power-dependent measurements.

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ISO 690CRAMER, Joel, Felix FUHRMANN, Ulrike RITZMANN, Vanessa GALL, Tomohiko NIIZEKI, Rafael RAMOS, Zhiyong QIU, Dazhi HOU, Ulrich NOWAK, Mathias KLÄUI, 2018. Magnon detection using a ferroic collinear multilayer spin valve. In: Nature communications. 2018, 9(1), 1089. eISSN 2041-1723. Available under: doi: 10.1038/s41467-018-03485-5
BibTex
@article{Cramer2018-03-14Magno-42143,
  year={2018},
  doi={10.1038/s41467-018-03485-5},
  title={Magnon detection using a ferroic collinear multilayer spin valve},
  number={1},
  volume={9},
  journal={Nature communications},
  author={Cramer, Joel and Fuhrmann, Felix and Ritzmann, Ulrike and Gall, Vanessa and Niizeki, Tomohiko and Ramos, Rafael and Qiu, Zhiyong and Hou, Dazhi and Nowak, Ulrich and Kläui, Mathias},
  note={Article Number: 1089}
}
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