skip to main content

Title: Nanoconstriction-based spin-Hall nano-oscillator

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.
Authors:
 [1] ; ;  [2] ;  [1] ;  [3] ;  [1] ;  [3]
  1. Department of Physics and Center for Nonlinear Science, University of Muenster, Corrensstr. 2-4, 48149 Muenster (Germany)
  2. Department of Physics, Emory University, 400 Dowman Dr., Atlanta, Georgia 30322 (United States)
  3. (Russian Federation)
Publication Date:
OSTI Identifier:
22310662
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; CHAINS; CURRENTS; HALL EFFECT; IMPLEMENTATION; MICROWAVE RADIATION; NANOSTRUCTURES; OSCILLATIONS; OSCILLATORS; SPIN; TEMPERATURE RANGE 0273-0400 K