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Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires

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2024

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Deutsche Forschungsgemeinschaft (DFG): 317077841
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Deutsche Forschungsgemeinschaft (DFG): 510766045

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Beilstein Journal of Nanotechnology. Beilstein Institut. 2024, 15, S. 360-366. eISSN 2190-4286. Verfügbar unter: doi: 10.3762/bjnano.15.32

Zusammenfassung

We present a novel method combining anodic aluminum oxide template synthesis and nanolithography to selectively deposit vertically patterned magnetic nanowires on a Si substrate. With this approach we fabricated three-dimensional nanowire-based spin valve devices without the need of complex etching processes or additional spacer coating. Through this method, we successfully obtained NiCu/Cu multilayered nanowire arrays with a controlled sequence along the long axis of the nanowires. Both magnetic switching and excitation phenomena driven by spin-polarized currents were clearly demonstrated in our NiCu/Cu multilayered nanowires. Moreover, the critical currents for switching and excitation were observed to be modulated in an oscillatory manner by the magnetic field in the nanowire-based devices. We present a toy model to qualitatively explain these observations.

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530 Physik

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Nanotechnology, Nanolithography, nanowires

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ISO 690FU, Mengqi, Roman HARTMANN, Julian BRAUN, Sergej ANDREEV, Torsten PIETSCH, Elke SCHEER, 2024. Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires. In: Beilstein Journal of Nanotechnology. Beilstein Institut. 2024, 15, S. 360-366. eISSN 2190-4286. Verfügbar unter: doi: 10.3762/bjnano.15.32
BibTex
@article{Fu2024-04-03Modul-69751,
  year={2024},
  doi={10.3762/bjnano.15.32},
  title={Modulated critical currents of spin-transfer torque-induced resistance changes in NiCu/Cu multilayered nanowires},
  volume={15},
  journal={Beilstein Journal of Nanotechnology},
  pages={360--366},
  author={Fu, Mengqi and Hartmann, Roman and Braun, Julian and Andreev, Sergej and Pietsch, Torsten and Scheer, Elke}
}
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