21/12/2025
We are profoundly saddened to announce the passing of Professor Konstantin Y. Gusliyenko, a renowned theoretical physicist in the field of magnetism.
Born in Kyiv, Ukraine, Professor Gusliyenko studied Physics at the National Technical University “KPI” in Kyiv, where he received his B.Sc. and M.Sc. in Physics with a specialisation in the physics of metals. In 1989, he obtained his PhD in Physics and Mathematics from the Institute for Metal Physics of the National Academy of Sciences of Ukraine. He then pursued a distinguished scientific career, holding positions at the Institute for Metal Physics and the Institute for Magnetism in Kyiv, followed by postdoctoral and senior research appointments at Vienna University of Technology, the Korea Institute for Advanced Study, Seagate Research in Pittsburgh, Argonne National Laboratory, and Seoul National University. From 2009 he served as an Ikerbasque Professor at the Department of Polymers and Advanced Materials of the University of the Basque Country (UPV/EHU) in San Sebastián, Spain.
Professor Gusliyenko was internationally recognised for his outstanding contributions to the theory of magnetism, particularly in understanding magnetisation dynamics in nanostructures. His pioneering work on the dynamics of magnetic vortices and on a wide range of non-uniform magnetic textures (skyrmions, hopfions and Bloch points) in confined geometries has had a lasting impact on modern magnetism and magnonics. His theoretical insights have shaped how we understand magnonics and nanomagnetism today, and they continue to inspire ongoing research in laboratories worldwide.
He also promoted the annual conference on magnetic solitons "Sol-SkyMag", held in San Sebastián, which brought together leading specialists on magnetic dynamics from around the world. Many of us attended this conference and greatly enjoyed both its high-quality scientific program and the warm hospitality of him and his family.
Those who worked with Professor Gusliyenko will remember him not only as a brilliant scientist but also as a remarkably kind, open, and generous person. He was always willing to share his knowledge, discuss new ideas, and devote time to providing careful explanations. He offered strong support, encouragement, and fair, honest advice to young researchers, helping them to grow scientifically and to find their own path in research. We extend our sincere condolences to his family and loved ones, and we will cherish his memory with gratitude and respect. His scientific legacy and the inspiration he gave us will remain with us for many years to come.
From: http://isik.amu.edu.pl/wp-content/uploads/2025/12/obituary_Prof_K_Y_Guslienko.pdf