Abstract
In magnetostatic approximation of electrodynamics the dispersion relation for magnetostatic back-ward volume waves (MSBVW) in a ferrite film, placed in a constant longitudinal and transverse alternating magnetic field is obtained. The magnetic field, damping and temperature influence on the spectrum and dispersion characteristics of the MSBVW is regarded.
Highlights
It is well known that spin waves have an extremely rich and peculiar dispersion that is nonlinear, anisotropic, and nonreciprocal [1, 2]
The use of monocrystalline ferro- and ferrimagnetic structures, such as iron-yttrium garnet (YIG) films, in systems based on MSVW allows the creation of compact devices with unique magnetic properties [4,5,6,7,8,9]
Minimization of the energy losses is the key to the successful operation of spintronics devices, but MSVW attenuation and temperature instability has not been studied enoung, because most of the research are carried out without taking into account the attenuation and the effect of temperature [10]
Summary
It is well known that spin waves have an extremely rich and peculiar dispersion that is nonlinear, anisotropic, and nonreciprocal [1, 2]. The spin wave dispersion is very sensitive to the sample’s magnetic properties and micromagnetic state, including both the internal magnetic field and magnetization. The use of monocrystalline ferro- and ferrimagnetic structures, such as iron-yttrium garnet (YIG) films, in systems based on MSVW allows the creation of compact devices with unique magnetic properties [4,5,6,7,8,9]. One of the main requirements for spintronics devices is the thermal stabilization of their magnetic parameters in the operating temperature range. It is well known that YIG films have a serious drawback — the strong temperature dependence of the saturation magnetization. Minimization of the energy losses is the key to the successful operation of spintronics devices, but MSVW attenuation and temperature instability has not been studied enoung, because most of the research are carried out without taking into account the attenuation and the effect of temperature [10]
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