期刊
NANO LETTERS
卷 19, 期 10, 页码 6839-6844出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.9b01994
关键词
Spintronics; nonlocal spin valves; curved nanoarchitectures; geometrical control; electrical and spin resistance
类别
资金
- Future and Emerging Technologies (FET) program within the Seventh Framework Program for Research of the European Commission, under FET-Open grant [618083]
- Deutsche Forschungsgemeinschaft [OR 404/1-1]
- VIDI grant - Netherlands Organization for Scientific Research (NWO) [680-47-543]
- ERC within the EU seventh Framework Programme (ERC) [306277]
- Zernike Institute for Advanced Materials
- Structural Characterization Facilities at IBC of the HZDR
Spintronic devices operating with pure spin currents represent a new paradigm in nanoelectronics, with a higher energy efficiency and lower dissipation as compared to charge currents. This technology, however, will be viable only if the amount of spin current diffusing in a nanochannel can be tuned on demand while guaranteeing electrical compatibility with other device elements, to which it should be integrated in high-density three-dimensional architectures. Here, we address these two crucial milestones and demonstrate that pure spin currents can effectively propagate in metallic nanochannels with a three-dimensional curved geometry. Remarkably, the geometric design of the nanochannels can be used to reach an independent tuning of spin transport and charge transport characteristics. These results laid the foundation for the design of efficient pure spin current-based electronics, which can be integrated in complex three-dimensional architectures.
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