More is different: the beauty of multiband in iron-based superconductors

by Hong Ding (TD Lee Institute SJTU)

Thursday 28 Nov 2024, 15:15 → 16:15 Europe/Stockholm

During this talk, I will highlight the unnoticed beauty of multiband of iron-based superconductors, including 1. Emergence of topological band which coexists with superconductivity, leading to the discovery of Majorana zero mode; 2. Interplay of multicomponent superconductivity, leading to the discoveries of exotic paring with time-reversal symmetry breaking and fractional vortex; 3. Contribution of Hund coupling towards pairing in this unique class of superconductors.

About the speaker:

Hong Ding, a chair professor of Tsung-Dao Lee Institute, Shanghai Jiao Tong University. He obtained BS degree in physics from Shanghai Jiao Tong University in 1990 and PhD degree in physics from University of Illinois at Chicago in 1995. He was a Postdoctoral Fellow in Argonne National Laboratory from 1996 to 1998. He was a faculty member of Department of Physics at Boston College during 1998 - 2008. He was a Chief Scientist at the Institute of Physics, Chinese Academy of Sciences (CAS) during 2008 - 2022. He has made several significant scientific achievements, including discovery of pseudogap in cuprate superconductors, observation of s-wave superconducting gap in iron-based superconductors, discovery of Weyl fermions in solids, and discovery of Majorana zero modes in iron-based superconductors. He has published more than 300 papers with total citations over 20000. He received Sloan Research Fellowship Award in 1999, was elected as American Physical Society Fellow in 2011, received Outstanding Science and Technology Achievement Prize of CAS in 2020, selected as New Cornerstone Investigator in 2022, and elected as an academician of CAS in 2023.