Thematic area of your work (one of the thematic areas of International research and practice conference "Nanotechnology and nanomaterials"

Spin wave excitations in magnetic bilayers with inhomogeneous interface
Gusieva Y.I.1, Gorobets O.Y.1, 2, Gorobets Y.I.1, 2 

1 National Technical University of Ukraine ”Igor Sikorsky Kyiv Polytechnic Institute”, Kyiv, Ukraine,

2 Institute of Magnetism, National Academy of Sciences of Ukraine, Kyiv, Ukraine 
E-mail: yuleva1313@gmail.com

Magnonics – the study of spin waves – has recently seen a burst of activity, fuelled by the prospect of magnetic field-controlled metamaterials and devices, capable of data processing with propagating spin waves as information carriers and using in nanoelectronics [1]. Over the past decades, the study of the question of the excitation and behavior of spin waves in multilayer films is an urgent problem and technically relevant knowledge. 
 The system consisting of two finite ferromagnetic medias separated by an interface is considered. Between those medias we assume boundary conditions with broken spatial inversion symmetry (BSIS) [2]. Analytic expressions for spin-wave properties show that the interface with BSIS leads to nonreciprocal spin-wave propagation [3], Also the additional condition of allowed frequency of spin wave propagation was derived. The new possibility to introduce a controlled  the propagation SWs in nanomaterials is in transmission through interface with BSIS. 

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