2004.07-present: Professor, Department of Physics, University of Science and Technology Beijing(USTB), China 2011.04-2016.05: Chairman, Department of Physics, University of Science and Technology Beijing 2003.05-2011.04: Deputy Chairman, Department of Physics, University of Science and Technology Beijing 2020.09-2003.05: Ph.D student, Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hong Kong, China 1992.06-2004.07: Associate Professor, Department of Physics, University of Science and Technology Beijing 1987.06-1992.06: Lecturer, Department of Physics, University of Science and Technology Beijing 1982.02-1987.06: Assistant teacher，Department of Physics, University of Science and Technology Beijing 1978.02-1982.01：Student，Department of Physics, University of Science and Technology Beijing

Set up and applied Phase-field models to different fields to study the physical properties of the materials, such as hydride precipitation and diffusion in Zirconium, Pseudoelasticity of Magnetic shape memory alloys, STT effect in spintronic system, vortex in superconductor film coupled with a magnetic layer, topological charge in liquid crystal system etc.. Combine the first-principle calculation with the phase-field method to do the multi-scale calculation of the properties of the materials. Developed a statistical model of molecular dynamics for calculating the hydrogen brittleness in iron. Studied physical properties of many magnetic systems by experiments. Published more than 140 authored or co-authored peer review research papers.