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Title: Spin Hall controlled magnonic microwaveguides

We use space-resolved magneto-optical spectroscopy to study the influence of spin Hall effect on the excitation and propagation of spin waves in microscopic magnonic waveguides. We find that the spin Hall effect not only increases the spin-wave propagation length, but also results in an increased excitation efficiency due to the increase of the dynamic susceptibility in the vicinity of the inductive antenna. We show that the efficiency of the propagation length enhancement is strongly dependant on the type of the excited spin-wave mode and its wavelength.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [1] ;  [5]
  1. Institute for Applied Physics and Center for Nonlinear Science, University of Muenster, Corrensstrasse 2-4, 48149 Muenster (Germany)
  2. Department of Physics, Emory University, Atlanta, Georgia 30322 (United States)
  3. Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041 (Russian Federation)
  4. Department of Physics, Bielefeld University, 33615 Bielefeld (Germany)
  5. (Russian Federation)
Publication Date:
OSTI Identifier:
22262630
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 15; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; EFFICIENCY; EXCITATION; HALL EFFECT; SPIN; SPIN WAVES; WAVEGUIDES