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Title: Propagation of nonlinearly generated harmonic spin waves in microscopic stripes

We report on the experimental study of the propagation of nonlinearly generated harmonic spin waves in microscopic CoFeB stripes. Using an all electrical technique with coplanar waveguides, we find that two kinds of spin waves can be generated by nonlinear frequency multiplication. One has a non-uniform spatial geometry and thus requires appropriate detector geometry to be identified. The other corresponds to the resonant fundamental propagative spin waves and can be efficiently excited by double- or triple-frequency harmonics with any geometry. Nonlinear excited spin waves are particularly efficient in providing an electrical signal arising from spin wave propagation.
Authors:
 [1] ; ; ;  [2] ;  [1] ;  [3]
  1. Center for Emergent Matter Science, RIKEN, 2-1 Hirosawa, Wako 351-0198 (Japan)
  2. Hitachi, Ltd., Central Research Laboratory, 1-280 Higashi-koigakubo, Kokubunji, Tokyo 185-8601 (Japan)
  3. (Japan)
Publication Date:
OSTI Identifier:
22278106
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COBALT COMPOUNDS; HARMONICS; IRON BORIDES; NONLINEAR PROBLEMS; SIGNALS; SPIN WAVES; WAVE PROPAGATION; WAVEGUIDES