Journal
APPLIED PHYSICS LETTERS
Volume 105, Issue 17, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4901027
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Funding
- Deutsche Forschungsgemeinschaft
- NSF [ECCS-1305586, DMR-1218414]
- Russian Ministry of Education and Science [2013-220-04-329]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1218414] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1305586] Funding Source: National Science Foundation
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We experimentally demonstrate magnetic nano-oscillators driven by pure spin current produced by the spin Hall effect in a bow tie-shaped nanoconstriction. These devices exhibit single-mode auto-oscillation and generate highly-coherent electronic microwave signals with a significant power and the spectral linewidth as low as 6.2MHz at room temperature. The proposed simple and flexible device geometry is amenable to straightforward implementation of advanced spintronic structures such as chains of mutually coupled spin-Hall nano-oscillators. (C) 2014 AIP Publishing LLC.
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