Report Topic 1: Structure and Performance Tuning of Amorphous Materials
Speaker: Luo Peng, Distinguished Researcher (Institute of Physics, Chinese Academy of Sciences)
Report Topic 2: Intelligent Optoelectronic Physics of Oxides
Speaker: Ge Chen, Researcher (Institute of Physics, Chinese Academy of Sciences)
Host: Professor Wen Dehua
Report time: 3 p.m. on Thursday, April 23, 2026
Report location: Room 401, Boxue Building, Wushan Campus, South China University of Technology
Host: School of Physics and Optoelectronics
Summary of Report 1: Amorphous materials constitute the fourth state of conventional matter, and due to their inherent characteristics that circumvent the defects of crystalline materials, they have significant applications in numerous high-tech fields. Although the microscopically disordered structure of amorphous materials is difficult to accurately characterize and describe using existing methods, they exhibit a rich variety of dynamical modes, providing possibilities for material property tuning. This report will introduce the research progress in regulating the structure and properties of amorphous materials from a dynamical perspective, as well as their potential applications in gravitational wave detection, ultra-high-sensitivity magnetic detection, organic semiconductors, deep space exploration, and high-performance armor-piercing materials.
Abstract of Report 2: The rapid development of big data and the Internet of Things has raised higher demands on the information processing capabilities of computing systems. Inspired by the human brain, novel systems are expected to integrate perception, storage, and computation functions, thereby significantly enhancing overall efficiency. Research related to intelligent computing has garnered significant attention in recent years and has become one of the current research hotspots. Oxide materials exhibit a range of rich physical properties due to the coupling effects between charge, orbit, lattice, and spin, potentially enabling the shaping of artificial brain-like functions and devices. This report will focus on high-quality oxide epitaxial thin film materials as the research vehicle, introducing our recent progress in this direction to meet the needs of optoelectronic intelligent computing. We have studied a new phenomenon of nonvolatile phase transition in vanadium dioxide induced by ultraviolet light, and based on this phenomenon, we have proposed intelligent optoelectronic devices that integrate perception, storage, and computation. We have explored the optoelectronic effects of various oxide artificial microstructures, achieving reconfigurable physical storage pool computing and synaptic functions. Through interface engineering, we have achieved artificial modulation of oxide microstructures, and electric field-driven interface atomic reconstruction has induced optoelectronic function reconfiguration, realizing optoelectronic sensing and in-situ computing. We have constructed high-quality self-supporting fluorite ferroelectric thin films using laser methods, discovered a new state of one-dimensional charged domain walls, and studied anomalous ferroelectric physics.
Introduction to the presenter: Luo Peng, a specially-appointed researcher at the Institute of Physics, Chinese Academy of Sciences, serves as the head of the Amorphous Materials and Physics Research Group and is a dual-appointed professor at the University of Chinese Academy of Sciences. His primary research focuses on the relaxation dynamics of amorphous materials and the influence of nanoscale confinement and interfacial interactions on dynamics, structure, and other properties. He has received support from the National Talent Introduction Program for Young Scientists and the Chinese Academy of Sciences' Foreign Talent Introduction Program. Additionally, he was honored with the Young Scientist Award of the Amorphous and High-Entropy Branch at the China Materials Conference 2025. He has published 36 SCI papers in journals such as Nature Materials, Physical Review Letters, Nature Communications, Annual Review of Physical Chemistry, and The Journal of Physical Chemistry Letters. His relevant research work has been selected as an Editor's Choice article in Physical Review Letters and highlighted by renowned academic media outlets including Nature Materials News & Views, Physics, Phys.org, MRS Bulletin, MIT Technology Review, and Science and Technology Daily. Some of his achievements have been included in the scientific progress reports of the National Laboratories in the United States.
Introduction to the presenter: Ge Chen, a researcher at the Institute of Physics, Chinese Academy of Sciences, and a doctoral supervisor. He is the chief scientist of the National Key R&D Program, a recipient of the National Science Fund for Distinguished Young Scholars, and an outstanding member of the Youth Innovation Promotion Association of the Chinese Academy of Sciences. He is dedicated to the study of the interaction between light and oxide artificial microstructures, and in recent years, he has conducted systematic research specifically on key physical issues faced in the field of intelligent optoelectronic physics. He has published over 100 papers in academic journals including Science and Nature Materials, and his relevant research results have been highlighted by Nature Materials and Nature Electronics. His work has been selected as one of the Top Ten Advancements in Chip Science in China and reported by media outlets such as Xinhua News Agency, CCTV News, and Science and Technology Daily.
