The magnetostatic surface waves in ferrite plate with dissipation. Part 1. Dispersion relations

 

Yu. I. Keller¹, P. A. Makarov¹, V. G. Shavrov², V. I. Shcheglov²

¹Syktyvkar State University, Syktyvkar, Russia

²Kotel’nikov Institute of Radio Engineering and Electronics, Moscow, Russia

 

 The paper is received on January 24, 2016

 

Abstract. By means of consistent solution of motion equation for magnetization the dissipation for magnetostatic surface waves (MSSW) propagating on in-plane magnetized ferrite plate is considered. The complex character of wave number caused by the dissipation is revealed. The approximation of small value dissipation is investigated. For the case of typical material and excitation frequency parameters appreciation of its employment is found. In this approximation the dispersion relations for real and imaginary parts of wave number are found.

Key words: ferrite, magnetostatic waves, dissipation.