Parametric Generation of Propagating Spin Waves in Ultrathin Yttrium Iron Garnet Waveguides

Herein, experimental demonstration of the parallel parametric generation of spin waves in a microscaled yttrium iron garnet waveguide with nanoscale thickness is presented. Using Brillouin light scattering microscopy, the parametric excitation of the first and second waveguide modes by a stripline microwave pumping source is observed. Micromagnetic simulations reveal the wave vector of the parametrically generated spin waves. Based on analytical calculations, which are in excellent agreement with experiments and simulations, it is proved that the spin‐wave radiation losses are the determinative term of the parametric instability threshold in this miniaturized system. The used method enables the direct excitation and amplification of nanometer spin waves dominated by exchange interactions. The presented results pave the way for integrated magnonics based on insulating nanomagnets.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Parametric Generation of Propagating Spin Waves in Ultrathin Yttrium Iron Garnet Waveguides ; volume:14 ; number:4 ; year:2020 ; extent:7 ; Physica status solidi / Rapid research letters. Rapid research letters ; 14, Heft 4 (2020) (gesamt 7)

Beteiligte, Orts- und Zeitangaben

• Urheber: Mohseni, Morteza ; Kewenig, Martin ; Verba, Roman ; Wang, Qi ; Schneider, Michael ; Heinz, Björn ; Kohl, Felix ; Dubs, Carsten ; Lägel, Bert ; Serga, Alexander A. ; Hillebrands, Burkard ; Chumak, Andrii V. ; Pirro, Philipp

Weitere Informationen

• DOI: 10.1002/pssr.202000011
• URN: urn:nbn:de:101:1-2022062512223155676384
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 15.08.2025, 07:22 MESZ