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International Conference on Magnonics

2018.09.16-21 The 3rd  International Advanced School on Magnonics 2018

From September 16 to 21, 2018, the International Conference "The 3rd International Advanced School on Magnonics 2018" was held at Igor Sikorsky Kyiv Polytechnic Institute on the basis of the Department of General and Experimental Physics of the Faculty of Physics and Mathematics together with the Adam Mickiewicz University (Poznan, Poland) and the Institute of Magnetism of the National Academy of Sciences and the Ministry of Education and Science of Ukraine. The first such conference was held in 2012 in Santa Margherita Ligure (Italy), the second - in 2016 in Exeter (UK).

Magnonics is a science that studies spin waves - the transfer at a distance of the magnetic moment of the atoms of a solid body. In devices of modern spin electronics, they replace electromagnetic waves and have the same purpose. For example, the negative and positive interference of spin waves is the physical basis of the devices of the spin logic. Spin waves can be stimulated and detected in ferromagnetic, antiferromagnetic materials and ferrites; they can be refracted and focused with the use of special lenses; their diffraction and interference can be carried out with the aid of magnon analogues of optical diffraction gratings and interferometers. Spin waves have nanometer-scale lengths and frequencies in the range of tens of GHz to THz, which simultaneously provides miniaturization and the quick action of spin control devices. There is a wide range of materials with a negligible low coefficient of attenuation for spin waves, which solves the problem of thermal energy losses.

This year conference was attended by leading experts, scientists, specialists in magnognics from Ukraine, USA, Germany, Great Britain, Poland, India and other countries. 90 reports were submitted to the conference and before the opening of the conference a collection of abstracts was published. It was a truly outstanding event not only for Igor Sikorsky KPI in particular in Ukrainian science as a whole, but also for participating countries, in which the magnonics is rapidly developing as a direction of fundamental science and, at the same time, as the latest engineering discipline. At the conference an overview and introduction to the most advanced research in this fascinating field of science were presented.

The topics covered both the fundamental and applied aspects of Magnonics. The conference provided an excellent opportunity to share the latest discoveries, ideas, discuss the future of the spin wave research and the prospect of creating spin-wave devices.

Although the magnonics is a young science, its physical foundations were created in the 1930s. The book by O.I. Akhiyeser, V.H. Baryakhtar and S.V.Peletminsky "Spin Waves", published in 1967, is a tabletop book for modern engineers who use magnonics. It is interesting to note that the outstanding scientist academician O.I. Akhiyeser was a graduate of Kyiv Polytechnic Institute, and his student and co-author, academician V.H. Baryakhtar was the founder and the first dean of the Faculty of Physics and Mathematics of Kyiv Polytechnic Institute. Therefore, we can say that KPI is directly involved in the birth of magnonics, and, as the recent "Third International School of Magnonics" has shown, it is successfully developing in KPI today.

O.Yu. Horobets, Ph.D., Professor of the Department of General and Experimental Physics, FMF


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