Alexander TagantsevALEXANDER K. TAGANTSEV received the B.S. degree from St. Petersburg State University, in 1974, and Ph.D. degree from Ioffe Physico-Technical Institute, St. Petersburg, Russia, in 1982 in solid state physics. Before 1993, he worked in Ioffe Physico-Technical Institute, (1991-1993, head of laboratory), and St. Petersburg State Technical University (1991-1993, professor). He joined the ceramics laboratory of EPFL in 1993 where he was leading ( up to 2016) the section for Modeling and theory of Electroceramics. He is also currently engaged as a principle research fellow at Ioffe institute (St. Petersburg, Russia). Tagantsev is a theoretician of a broad domain of expertise from ferroelectricity and phonon physics to electrodynamics of superconductors and quantum optics. He is the author of key results on the theory of microwave dielectrics loss, dielectric polarization in crystalline materials, and relaxor ferroelectricity. He is also known in the field of ferroelectric thin films for elucidating works on the polarization switching and degradation in these systems. He authored or co-authored more than 300 scientific articles and two monograph (on domains in ferroics and tunable film bulk acoustic wave resonators). In 2007, Prof. Tagantsev was entitled to the Honors for lifetime achievement in the field of integrated ferroelectrics by the International Symposium on Integrated Ferroelectrics.
Marco GrioniMarco Grioni was born in Milan (Italy) where he graduated in 1982. He has occupied research positions at Minneapolis (USA), Nijmegen (The Netherlands), Orsay (France) and Neuchâtel, where he became Privat Docent in Solid State Physics in 1994. Since 1996 he is at EPFL, where he teaches physics to undergraduate and graduate students. He is acting director of the Laboratory of Electron Spectroscopy of IPN, and an adjunct professor from 2005.
His research interests concern the electronic properties of novel materials,namely high-temperature superconductors, low-dimensional metals, and heavy fermion compounds, which he investigates by high-resolution photoemission (ARPES), ultrafast time-resolved ARPES, and photon-in photon-out synchrotron-based spectroscopies. Author of approx. 220 scientific articles, he is actively involved in the development of new instruments. From 2003 to 2006 he was the chairman of the users organization of the European Synchrotron Radiation Facility (ESRF Grenoble). Between 2010 and 2017 he served as chairman of the scientific advisory committee of the french national synchrotron light source SOLEIL