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Title: Dipolar field-induced spin-wave waveguides for spin-torque magnonics

We use high-resolution imaging to study the propagation of spin waves in magnonic waveguides created by the dipolar magnetic fields of microscopic patterns. We show that the characteristics of spin-wave modes in such waveguides depend strongly on their geometry. In particular, by tuning the geometrical parameters, field-induced confinement for both the edge and the center waveguide modes can be achieved, enabling control over the spin-wave transmission characteristics. The studied waveguiding structures are particularly promising for the implementation of magnonic devices utilizing spin-torque phenomena.
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:
22399115
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 2; Other Information: (c) 2015 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; CONFINEMENT; CONTROL; IMPLEMENTATION; MAGNETIC FIELDS; MAGNONS; RESOLUTION; SPIN; SPIN WAVES; TORQUE; WAVE PROPAGATION; WAVEGUIDES