PhD Candidate
ALEKSANDROS DELTSIDIS
adeltsidis@materials.uoc.gr
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Title
Electron Correlations in Layered Metal Chalcogenides: Structure and Physical Properties
Supervisor
LAPPAS ALEXANDROS, Researcher A, FORTH, Heraklion Crete GREECE
Committee Members
KOPIDAKIS GEORGIOS, Associate Professor, Materials Science & Technology Dept. - UOC
STOUMPOS KONSTANTINOS, Associate Professor, Materials Science & Technology Dept. - UOC
Abstract
The thesis is focused in the development of novel two dimensional layered inorganic materials, motivated by tuning their chemistry by optimal combinations of transition metals, chalcogens and electron donating species. Their chemical manipulation by soft chemistry routes imposes subtle structural and electronic changes, requiring studies of their physical properties by high-throughput and high-resolution experimental tools. In these challenges, in-house experiments are complemented by high brilliance, element-selective EXAFS and XANES studies accessed at large scale synchrotron facilities that enable the understanding of doping-induced atomic and electronic fluctuations. The quest for such local structure modifications uncovers how electron(-paring) – lattice correlations impact the magnetic and superconducting properties of these materials. Insights in their interplay, aims to provide an avenue to parametrize the conditions for high-Tc superconductivity, with the purpose to engineer materials for energy efficient applications (e.g. power transmission grids, quantum electronics, MRI etc.).