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Title: Nanoconstriction-based spin-Hall nano-oscillator

Abstract

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];  [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)
Publication Date:
OSTI Identifier:
22310662
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
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

Citation Formats

Demidov, V. E., E-mail: demidov@uni-muenster.de, Urazhdin, S., Zholud, A., Sadovnikov, A. V., Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Demokritov, S. O., and Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041. Nanoconstriction-based spin-Hall nano-oscillator. United States: N. p., 2014. Web. doi:10.1063/1.4901027.
Demidov, V. E., E-mail: demidov@uni-muenster.de, Urazhdin, S., Zholud, A., Sadovnikov, A. V., Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Demokritov, S. O., & Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041. Nanoconstriction-based spin-Hall nano-oscillator. United States. doi:10.1063/1.4901027.
Demidov, V. E., E-mail: demidov@uni-muenster.de, Urazhdin, S., Zholud, A., Sadovnikov, A. V., Saratov State University, 83 Astrakhanskaya str., Saratov 410012, Demokritov, S. O., and Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041. Mon . "Nanoconstriction-based spin-Hall nano-oscillator". United States. doi:10.1063/1.4901027.
@article{osti_22310662,
title = {Nanoconstriction-based spin-Hall nano-oscillator},
author = {Demidov, V. E., E-mail: demidov@uni-muenster.de and Urazhdin, S. and Zholud, A. and Sadovnikov, A. V. and Saratov State University, 83 Astrakhanskaya str., Saratov 410012 and Demokritov, S. O. and Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041},
abstractNote = {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.},
doi = {10.1063/1.4901027},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 17,
volume = 105,
place = {United States},
year = {2014},
month = {10}
}