We are pleased to welcome Assoc. Prof. Jing Yang You from Beihang University (BUAA), China, as a featured speaker at the 2nd Edition of theInternational Congress on Materials Science and Nanotechnology (M-Nano 2026).
🎤 Presentation Title
“Moiréexcitons in generalized Wigner crystals: A first-principles GW-BSE study”
Dr.
Jingyang You is an Associate Professor at the International Frontier
Interdisciplinary Science Institute, Beihang University. He received his Ph.D.
in Condensed Matter Physics from the University of Chinese Academy of Sciences
in 2020 and subsequently conducted postdoctoral research at the National
University of Singapore and the University of Southern California.
His
research focuses on first-principles calculations of correlated quantum
materials, including moiré excitonics, electron-phonon coupling in kagome
superconductors, and topological quantum states. He has published more than 40
papers as a first or corresponding author in journals including PNAS, Physical
Review Letters, JACS, and National Science Review.
🔬 About the Presentation
The
presentation will explore generalized Wigner crystals (GWCs) in
transition-metal dichalcogenide (TMD) moiré superlattices and the emergence of Wigner
crystalline excitons (WCEs) under photoexcitation.
Using
large-scale first-principles GW-Bethe-Salpeter equation (GW-BSE)
calculations on systems containing nearly 10,000 atoms per supercell, the study
examines WCEs in an angle-aligned MoSe₂/MoS₂ moiré heterostructure at
different hole fillings.
The work
investigates how symmetry-breaking charge order influences excited states and
how strong electron-hole interactions shape exciton behavior. The study also
proposes photocurrent tunneling microscopy (PTM) as a potential
experimental approach for directly visualizing correlated electron-hole pair
distributions.
The
research provides a computational framework for studying correlated
excited-state phenomena in moiré quantum matter and explores Wigner crystalline
excitons as a platform for investigating many-body interactions.
📅 Join M-Nano 2026
Date: 23–25 November 2026
Format: Online
Event: 2nd Edition of International Congress on Materials Science and
Nanotechnology
🌐 Conference Website: https://materials.miconferences.com/
#MNano2026
#MaterialsScience #Nanotechnology #QuantumMaterials #MoiréExcitons
#WignerCrystals #CondensedMatterPhysics #AdvancedMaterials
