Rob Moore

Oct 8 - In Situ Studies of Inorganic Transition-Metal Complexes (environmental/operando talks spanning materials science/condens
Presenter Rob Moore
Abstract Growth and in-situ Investigation of the Electronic Structure of Low Dimensional Transition-Metal Complexes The past decade has seen revolutionary advances in the growth of thin film materials utilizing molecular beam epitaxy (MBE) and tools to examine their crystallographic properties. There are numerous examples of the precise atomic control of films and interfaces where unexpected states or enhancement of properties are observed. However, controlling materials on the level of atoms is still missing the key to fully understanding and engineering materials. The microscopic electronic structure of materials determines all the macroscopic physical and chemical properties. Advances angle-resolved photoemission spectroscopy (ARPES) has enabled unprecedented access to the electronic structure of materials. Energy resolution on the order of a few millivolts and direct multi-dimensional mapping pushes ARPES to the forefront for understanding the most challenging materials problems of our times. Here I will present the latest results from local efforts to combine MBE and ARPES for the in-situ investigation of novel thin film electronic structure. Pushing the dimensional limits down to a single monolayer, we have discovered the secrets of the superconductivity enhancement in monolayer FeSe grown on SrTiO3 and have discovered a tunable direct bandgap in monolayer MoSe2.