Topic： Explore & Control ComplexOxide Interfaces with Atomic Precision
Department of Physics and Astronomy, Louisiana State University
Time: June 7 at 3:00 PM （2016年6月7日（周二）下午3：00）
Site: Room 442, Zhanghui Building （章辉442室）
All Are Welcome！
Abstract:A definingcharacteristic of complex transition-metal oxides (TMOs) is that they containincomplete d sub-shells thus having a multiple of possible groundstates. This triggers their vast variety of physical properties, emerging froma complicated competition between multiple energy scales and the close couplingwith lattice and spin degrees of freedom. On one hand, both chemical andphysical complexity presents a formidable challenge in condensed matter physicsand materials science in general. On the other hand, the complexity is directlyresponsible for their tunability, offering a fabulous playground for makingartificial structures of these materials with new phenomena. It has becomeincreasingly clear that surfaces, interfaces, thin films and heterostructuresof TMOs display a rich diversity of fascinating properties that are related,but not identical to, the bulk phenomena, while the origin is still fiercelycontested. In this talk, I will introduce our ability to grow high quality thinfilms with atomically sharp interfaces, as well as powerful tools tocharacterize their properties down to atomic resolution. I will use severalexamples to show that, such combination of growth and characterizationtechniques not only allow us to discover the unknown origin of conventionalinterface, but widely expand the possibility to explore unconventionalinterfaces and search for novel functionality.
Prof. Jiandi Zhang received B.S. and M.S. degrees in physicsfrom the Nanjing University of Science and Technology in 1982 and the ChineseAcademy of Sciencein 1986,respectively. Then he was on the faculty of ShanghaiJiao Tong Universitybetween 1986 and 1989. He received his Ph.D. degree in physics from Syracuse University in 1994, spent about one year at University of Nebraska-Lincoln and 3 years as a postdoc fellow at Oak Ridge National laboratory/the University of Tennesseeprior to joining the Florida International University as a faculty member in 1998. Starting from2009, he became a full professor in physics at LouisianaState University.He has published more than 100 peer-reviewed research articles. He is a fellowof American Physical Society.Detailed about Zhang’s research group can foundat http://www.phys.lsu.edu/material-physics/