UDC 538.955

Features of the propagation of a non-reflected spin wave in YIG films with artificial defects

 

V. D. Bessonov, V. S. Teplov, A. V. Telegin

M.N.Mikheev Institute of Metal Physics, Ural Branch of Russian Academy of Sciences, S. Kovalevskaya str., 18, Ekaterinburg 620108, Russia

 

The paper is received on October 21, 2019, after correction - on October 30, 2019

 

Abstract. The propagation of total non-reflected spin waves in a film of yttrium iron garnet with artificially created defects is studied using Brillouin light scattering. It is demonstrated that a non-reflected wave forms by the line of artificially created defects. It propagates in the film in the form of a non-diverging beam at a distance of more than 4 mm. A propagating non-reflected spin wave is compared with a caustic wave created by a single defect and a surface magnetostatic wave in the yttrium iron garnet film. It is experimentally confirmed that the effect of complete non-reflection of spin waves is a linear wave effect that occurs at a critical angle between the lines of defects and the external magnetic field for a given frequency of excitation of the microwave signal.

Keywords: spin waves, non-reflected wave, YIG, artificial defects, Brillouin light scattering, magnonics.

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For citation:

V. D. Bessonov, V. S. Teplov, A. V. Telegin. Features of the propagation of a non-reflected spin wave in YIG films with artificial defects.  Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 10. Available at http://jre.cplire.ru/jre/oct19/11/text.pdf

DOI  10.30898/1684-1719.2019.10.11