Announcement: In view of the current situation in Hong Kong, please be informed that the Colloquium will be cancelled.
ABSTRACT
Structure is an arbitrary partition of a space. From Euclid to Hilbert space, from numerical to topological space, the design for optimized structures in complex systems remains nontrivial. After algebra gradually replaced calculus, the use of inner and outer product of vectors became an instrument to describe physical processes, which oppositely however, also limited the imagination of utilizing other forms of products. In one electron processes, the origin of functionality is highly determined by the local symmetry, which is governed by the inner product of matrices. The demand for accurate characterization of local symmetry at picometer scale has greatly promoted the development of spherical aberration corrected electron microscopy. In addition, modern microscopy seems to be able to address Prof. Feynman’s assignment to solve the three fundamental postulates in band theory, periodic potential, one electron, and adiabatic approximations. This talk will focus on the picometer scale fine structure and novel physical properties of functional materials under symmetry breaking within the realm of inner product functionality.
BIOGRAPHY
Dr Lin Gu, researcher at the Institute of Physics, Chinese Academy of Sciences, has been engaged in the field of electron microscopy for nearly 20 years. In 2002, he graduated from Tsinghua University mentored by Academician Zhu Jing. In 2005, he received his Ph.D. from Arizona State University supervised by Prof. David J. Smith. He then worked as aa postdoctoral researcher at the Max Planck Institute for Metals Research in Stuttgart Germany, and the Tohoku University in Japan. In recent years, Dr. Gu focused on the structure and electronic structure of functional materials at Picometer scale. So far, he has published more than 500 papers (including 12 papers of Science/Nature, and more than 50 papers of Science/Nature titled journals), with citations for more than 26,000 times. He has been awarded the IMC16/IFSM Young scientists Award(2006); Young Investigator Award from the International Meeting on Lithium Batteries(2012); “Lu Jia-Xi” Young Talents Award from the Chinese Academy of Sciences(2013); Outstanding Science and Technology Achievements Award from the Chinese Academy of Sciences (2013); Young Scientist Award from the Chinese Crystallographic Society (2018). He was selected as highly cited researcher by Clarivate Analytics in the field of Material Science (2018-2019) and Chemistry (2019).
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