报告题目Title： Spectroscopy and microscopy of graphene on metals 金属上石墨烯的光谱和显微
报 告 人Speaker：Yuriy Dedkov, IHP, Frankfurt (Oder)
报告时间Time：2016年6月12日(周日)上午10:00
报告地点Venue：校本部E106会议室，永利量子与分子结构国际中心SHU ICQMS
报告摘要Abstract：
Graphene on metals, which structure can vary from simple lattice matched to commensurate moiré structures, is an ideal system for different kinds of surface science experiments allowing to study many fascinating phenomena. Here we present several examples on the application of electron spectroscopy (NEXAFS, XMCD, XPS, ARPES) and scanning probe methods (STM and AFM) for the investigation of the electronic structure of these systems: graphene on lattice matched 3d ferromagnetic metals (Ni and Co) and on lattice mismatched 4d and 5d metals (Rh, Ru, and Ir). These combined approaches allow to understand the bonding mechanism at the graphene-metal interface, the main features of the graphene-derived electronic structure as well as the imaging contrasts in the scanning probe experiments. All experimental data are compared with the state-of-the-art DFT calculations that lead to the deep understanding of the observed phenomena.
Yuriy Dedkov obtained his PhD in Physics in 2004 from the RWTH Aachen University, Germany. He got a Dr. habil. degree in 2013 at the Dresden University of Technology, Germany. He was a research associate at the Dresden University of Technology and in Fritz Haber Institute of the Max Planck Society, Berlin. Since 2011 during 4 years he was an application staff scientist at SPECS Surface Nano Analysis GmbH, responsible for the demo laboratory. Presently he is a Group Leader on the graphene research at the IHP Leibniz-Institute for the Innovative Microelectronics. He has a broad experience in many surface-science techniques with specialization in spin- and angle-resolved photoelectron spectroscopy and scanning probe microscopy. He has co-authored more than 100 publications in peer reviewed journals. In 2014 he received Gaede Prize of the German Vacuum Society for the series of works on the graphene-metal interfaces.
