In Memoriam: Alexander Sergejevich Abyzov (1954–2025)

We are deeply saddened to announce the passing of Alexander Sergejevich Abyzov on September 14, 2025. A distinguished theoretical physicist and Senior Research Fellow at the Akhiezer Institute for Theoretical Physics in Ukraine, Abyzov made pioneering contributions to the understanding of dynamic processes in glass-forming systems, including diffusion, viscous flow, relaxation, and crystallization. In recent years, he became a valued collaborator of the CeRTEV research team in Brazil, where his mentorship and generosity left a lasting impact. Over his career, he published more than 100 scientific papers and spoke at over 50 international conferences, with recent influential works appearing in Acta Materialia, Journal of Non-Crystalline Solids, Journal of the American Ceramic Society, Scripta Materialia, Entropy, and Journal of Chemical Physics. His ability to bridge theory and practice connected Ukrainian and Brazilian glass science communities and inspired a new generation of researchers.

Beyond his scientific brilliance, Alex will be remembered for his kindness, humility, and warmth. The glass science community honors his legacy and mourns the loss of a brilliant mind and cherished colleague.

Tributes to Alexander Sergejevich Abyzov

Colleagues and friends from around the world remember Alexander Sergejevich Abyzov as a brilliant scientist, a generous mentor, and a warm, kind-hearted friend. His unique ability to bridge theory and experiment, his attentive and collaborative spirit, and his unwavering support for colleagues and students left a lasting mark on all who worked with him. Alex inspired new ideas, fostered international partnerships, and brought joy to both scientific discussions and everyday life. His legacy lives on in the research he advanced, the friendships he nurtured, and the many lives he touched. He will be deeply missed and fondly remembered by all who had the privilege to know him.

Contributors:

Vladimir Fokin
Jürn W. P. Schmelzer
Edgar Dutra Zanotto
Lorena Raphael Rodrigues
Eduardo Bellini Ferreira
Marcio L. F. Nascimento
Azat Tipeev
Alberth Matheus Carvalho Costa
Guilherme Macena
Alisson Mendes Rodrigues
Helena Ramirez