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Spin waves with large decay length and few 100 nm wavelengths in thin yttrium iron garnet grown at the wafer scale

Applied physics letters, 2017-07, Vol.111 (1) [Peer Reviewed Journal]

Author(s) ;ISSN: 0003-6951 ;EISSN: 1077-3118 ;DOI: 10.1063/1.4991520 ;CODEN: APPLAB

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  • Title:
    Spin waves with large decay length and few 100 nm wavelengths in thin yttrium iron garnet grown at the wafer scale
  • Author: Maendl, Stefan ; Stasinopoulos, Ioannis ; Grundler, Dirk
  • Subjects: Coplanar waveguides ; Decay ; Epitaxial growth ; Group velocity ; Iron ; Liquid phase epitaxy ; Liquid phases ; Magnons ; Signal transmission ; Yttrium ; Yttrium-iron garnet
  • Is Part Of: Applied physics letters, 2017-07, Vol.111 (1)
  • Description: Using conventional coplanar waveguides (CPWs), we excited spin waves with a wavelength λ down to 310 nm in a 200 nm thin yttrium iron garnet film grown by liquid phase epitaxy. Spin-wave transmission was detected between CPWs that we separated by up to 2 mm. For magnetostatic surface spin waves, we found a large nonreciprocity of 0.9 and a high group velocity v g of up to 5.4 km/s. The extracted decay length l d amounted to 0.86 mm. Small λ, high v g , and large l d are key figures of merit when aiming at non-charged based signal transmission and logic devices with spin waves.
  • Publisher: Melville: American Institute of Physics
  • Language: English
  • Identifier: ISSN: 0003-6951
    EISSN: 1077-3118
    DOI: 10.1063/1.4991520
    CODEN: APPLAB
  • Source: Alma/SFX Local Collection
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