Reflection of Spin Waves From the Boundary of Ferromagnetic Medium under Generalized Boundary Conditions
Journal Title: Հայաստանի գիտությունների ազգային ակադեմիայի տեղեկագիր․ Մեխանիկա - Year 2010, Vol 63, Issue 2
Abstract
In the paper reflection problem of an incident bulk ferromagnetic spin-wave is solved. The wave reflects from the ferromagnetic medium surface, when on the surface are given the generalized boundary conditions for magnetization density [4]. Solution of the problem provides a foundation to confirm, that in ferromagnetic medium appears two nonhomogeneous accompanying surface waves, besides of the mirror reflected wave. The two surface waves propagation velocities are the same, but coefficients of damping are different. The magneto static nonhomogeneous waves also arise in outside medium. As a result it is shown that the spin-wave reflection from the ferromagnetic medium surface is the full internal reflection for all the incident waves angles, except of perpendicular or parallel cases.
Authors and Affiliations
Zaven Danoyan, Levon Atoyan
Keywords
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