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Doctors Philosophiae Honoris Causa

(A Brief Biographical Sketch)

Ihor Vasylyovych Stasyuk is a well-known scientist in the field of theoretical physics and solid state theory, public figure, Doctor of Science (1985), Professor (1987), Corresponding Member of National Academy of Sciences of Ukraine (1995), Head of the Department for Quantum Statistics of the Institute for Condensed Matter Physics of National Academy of Sciences of Ukraine.

Born on September 23, 1938 in the town of Berezhany in Ternopil region. In 1959 he graduated with honours (Cum Laude) from the Faculty of Physics of Ivan Franko State University of Lviv. While still being a student he started together with V.V. Vladimirov his investigations of “new form of polar model” under the supervision of Prof. A.Yu. Glauberman. The proposed idea of operators of “elementary nodal excitations”, a precursor of the famous X-operators of Hubbard, was recommended by academician N.N. Bogolyubov for the publication in “Doklady AN USSR”. In 1963 he defends a Ph.D. thesis entitled “Method of nodal excitations in the theory of non-metallic crystals”. He was involved in both teaching and research activities at the departments of theoretical physics and solid state theory of Ivan Franko State University of Lviv. From 1978 to 1983 he works at the Institute for Applied Problems of Mechanics and Mathematics of Academy of Science of Ukrainian SSR and then at the Lviv Division of the Institute of Theoretical Physics of Academy of Science of Ukrainian SSR. In 1985 he defends his Doctor of Science thesis entitled “Theory of effects induced by external fields in crystals with structural phase transitions”. Starting from the foundation of the Institute for Condensed Matter Physics in 1990 until 2006 he was a research Deputy Director of the Institute; he is also a Head of Department for Quantum Statistics (starting from 1986).

The most important scientific results of I.V. Stasyuk are achieved in the field of statistical theory of condensed systems and solid state theory. These include: the development of mathematical methods in the theory of multi-level systems and systems of Fermi and Bose particles with strong short-range correlations; the investigation of anharmonic effects and mechanisms of superconductor pairing in high-temperature superconductors; the description of phase transitions and bistability phenomena in crystals with the locally anharmonic structure units. He has constructed the models of ferroelectrics with complex structure of hydrogen bonds that allowed description of their dynamic and thermodynamic properties. He also proposed the microscopic theory of optical and deformational effects induced by external fields for the wide range of dielectric crystals, ferroelectrics and Jahn-Teller crystals. The developed theory of proton and ion transport in quasi-one-dimensional structures and superionic crystals with hydrogen bonds is now applied in the theory of intercalated systems. He is the author of about 500 papers in scientific journals; his scientific results are published in three monographs.

I.V. Stasyuk is a talented teacher. Several generations of students have attended his lectures on theoretical physics. A wide range of courses by Prof. Stasyuk includes quantum statistics, solid state theory, theory of phase transitions and mathematical methods of theoretical physics. He trained 20 Ph.D. and 4 of them became D.Sci.

I.V. Stasyuk is the Vice-President of Ukrainian Physical Society (starting from 2002), the active member and the member of Presidium of the Shevchenko Scientific Society. Starting from 1993 he is Associate Editor of Condensed Matter Physics journal, member of Editorial Board of the Phase Transitions journal as well as of some other journals. He is the member of International Advice Committee “Domains in ferroics and mesoscopic structures”, Soros Professor (1996) and “Excellence in Education of Ukraine” badge holder (1998). He was awarded by the Certificate of Honour of the Verkhovna Rada (Supreme Council) of Ukraine in 2004 and by the Insignia “For Scientific Achievements” of the National Academy of Sciences of Ukraine in 2008. In 2009 I.V.Stasyuk became the Chevalier of the Order of Merit of Third Class.

I.V. Stasyuk has made valuable contributions in the establishing, revival and development of many public scientific institutions. He is the famous popularizer of science and culture, a person of encyclopaedic knowledge.