报告题目：Hydrogenunder extreme pressure

报告人：Dr. BartomeuMonserrat

Cavendish Laboratory, University ofCambridge

Abstract:Hydrogenunder extreme compression and low temperatures adopts a series of crystalstructures whose properties might include room temperature superconductivity orzero temperature quantum fluidity. Experimental probes are nonethelessinconclusive in determining the structure of most observed phases, and firstprinciples quantum mechanical simulations can therefore provide useful modelsto understand the properties of compressed hydrogen. In this talk I willdescribe our computational work on exploring novel high pressure hydrogenstructures. I will demonstrate how we need to go beyond standard structureprediction techniques to fully incorporate the quantum nature of the hydrogenmolecule in order to understand the hydrogen phases that appear at thepressures and temperatures accessible with diamond anvil cell experiments. Iwill also argue that nuclear magnetic resonance combined with diamond anvilcells could be used to unambiguously identify the correct structures of highpressure hydrogen phases.

Author:DrBartomeu Monserrat is a Winton Advanced Research Fellow working at theCavendish Laboratory, University of Cambridge. His research focuses on thedevelopment of first principles quantum mechanical methods to study materialproperties, with a particular emphasis on excitations in semiconductors,topological order, superconductivity, and high pressure physics. He holds aMSci Physics degree from Imperial College London (2011), a PhD in Physics fromthe University of Cambridge (2015), and spent two years at Rutgers Universityas a postdoctoral researcher (2015-17). His work was recognized with the 2018Psi-K Volker Heine Young Investigator Award.

报告时间：2019年3月21日（周四）上午10:00

报告地点：前卫南区唐敖庆楼C区603报告厅

举办单位：超硬材料国家重点实验室

物理学院

吉林省物理学会

中国物理学会高压物理专业委员会