Title: Effect of lattice strain on the physical properties of complex metal-oxide films

Speaeker:Prof. Quanxi Jia（Center for Integrated Nanotechnologies Los Alamos National Laboratory，USA）

Time:15:00pm, June 29, 2012

Venue: Academic conference center, Institute of Semiconductors, CAS

Abstract:Epitaxial nanocomposites, in which much enhanced functionalities can be achieved through interfacingdifferent strongly correlated materials at the nanoscale, provide a new design paradigm to produce novel properties that cannot be obtained in the individual constituents. Recent experimental results have shown that new functionalities and emergent behaviors in complex metal-oxides can be obtained through constituent interactions on micro- and/or nano-scales. In this talk, I will discuss our effort to control the functionality in hybrid complex oxide nanostructures, namely, vertically aligned nanocomposites. We have demonstrated that it is possible to control the strain and to dramatically improve the physical properties or functionalities of complex meta-oxide films by use of vertical nanocomposites.

Biography: Quanxi Jia is a Thrust Leader at the Center for Integrated Nanotechnologies, a DOE Nanoscale Science Research Center operated jointly by Sandia and Los Alamos National Laboratories located in New Mexico. He is a Fellow of Los Alamos National Laboratory, a Fellow of the American Physical Society (APS), a Fellow of the American Ceramic Society (ACerS), and a Fellow of the American Association for the Advancement of Science (AAAS). He received his B.S. and M.S. in Electrical Engineering from Xian Jiaotong University, China, in 1982 and 1985 respectively, and his PhD in the same field from the State University of New York, Buffalo in 1991. Quanxi has authored/co-authored over 380 refereed journal articles and eight book chapters. He has 40 US patents awarded in electronic materials and devices. Among the numerous awards and honors he has received are two prestigious R&D 100 awards, the 2005 Asian-American Engineer of the Year Award, and the Federal Laboratory Consortium for Technology Transfer Awards for Excellence in Technology Transfer. Quanxi is currently working in the following areas: synthesis and study of structure-property relationships of nanostructured materials, multifunctional materials, and thin films; development of novel deposition techniques for the growth of electronic materials; as well as development and fabrication of high-temperature superconducting films, novel solid-state microelectronic/electro-optic devices, and semiconductor/energy materials and devices.