[UCI-Calit2] Upcoming Lecture Event

Anna Lynn Spitzer aspitzer at calit2.uci.edu
Wed Feb 14 15:33:25 PST 2007


Title:                            Self-Organized Interfacial Growth in Diffusion-Limited Systems

 

Speaker:                      Mu Wang, National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University

 

Time:                           3 p.m.

 

Date:                           Tuesday, Feb. 20, 2007          

 

Location:                     Calit2 Building, Room 3008

 

Abstract:                      Branching is probably the most common growth mode in nature. The examples may vary from river networks to snow-flakes and lightening sparks. In this talk, Wang will concentrate on the growth of crystalline branches in artificially controlled, diffusion-limited systems. Two examples are given to explain how the ordered spatio-temporal oscillations are self-organized on laboratory desktops. In the crystallization of inorganic salt (for example NH4Cl or CsCl), inhomogeneous surface-tension may greatly affect the nucleation process in lateral growth, hence leading to a peculiar zigzag branching morphology.  The second example is the electrochemical growth from an ultra-thin electrolyte layer, where spontaneous oscillation of electric potential/current occurs, and periodic nanostructures are induced to the deposit filaments. This phenomenon might be instructive for fabricating nanostructured metallic wires for applications in surface plasmonics.   

 

Bio:                              Wang received bachelor’s and doctorate degrees in physics from Nanjing University in Nanjing, China. He is the Cheung-Kong Professor of Condensed Matter Physics and director of the National Laboratory of Solid State Microstructures at Nanjing University.  He is also the chairman of the Department of Physics teaching committee, a member of the advisory board for the Journal of Physics: Condensed Matter (UK) and editor of the European Physical Journal Applied Physics. He is the recipient of many awards, including the Chien-Shiung Wu Physics Award from the Chinese Physical Society; the Prize of Science and Technology for Young Researchers, from the Chinese Association of Science and Technology; the National Science Fund for Distinguished Young Scholars, from the National Natural Science Foundation of China; the Distinguished Young Research Award from the Qiu Shi Foundation of Science and Technology, Hong Kong; and the Award for Progress in Science and Technology from the Chinese Ministry of Education (2nd class). His research focuses on interfacial growth and pattern formation, electroconvection and noise in electrochemical deposition systems, and self-assembly and pattern formation in lipid monolayers and other soft condensed matter.

 

Additional Information: Jian-Guo Zheng, jzheng at calit2.uci.edu or 949.824.0441.

 

 

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