Nanoconstriction-based spin-Hall nano-oscillator

Journal Article · Mon Oct 27 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4901027· OSTI ID:22310662

Urazhdin, S.; Zholud, A. ^[1]; Sadovnikov, A. V. ^[2]; Demokritov, S. O. ^[2]

---

1. Department of Physics, Emory University, 400 Dowman Dr., Atlanta, Georgia 30322 (United States)
2. Department of Physics and Center for Nonlinear Science, University of Muenster, Corrensstr. 2-4, 48149 Muenster (Germany)

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 6.2 MHz 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.

• OSTI ID: 22310662
• Journal Information: Applied Physics Letters, Vol. 105, Issue 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CHAINS
CURRENTS
HALL EFFECT
IMPLEMENTATION
MICROWAVE RADIATION
NANOSTRUCTURES
OSCILLATIONS
OSCILLATORS
SPIN
TEMPERATURE RANGE 0273-0400 K