新闻动态
综合新闻
科研动态
学术活动
媒体聚焦
通知公告
您现在的位置:首页 > 新闻动态 > 学术活动
9.25】Dr. Xuan Gao
Lee Hsun Lecture Series
 
2013-09-23 | 文章来源:李薰奖办公室        【 】【打印】【关闭

Lee Hsun Lecture Series

Topic: Topological Insulators from Bottom up

Speaker: Dr. Xuan Gao

          Case Western Reserve University, U.S.A.

Time: 10:00-12:00 AM., (Wed.) Sept.25th, 2013

Venue: Room 403, Shi Changxu Building, IMR CAS

Abstract

Topological insulators (TIs) are novel quantum materials with conducting gapless surface states (SS) and insulating bulk. Nanostructures with large surface-to-volume ratio are thus attractive for the studies of topological SS in TI materials, which, unfortunately often have high residual conductivity in the bulk due to defects. In this talk, we will discuss the chemical synthesis and electron transport studies of various nanostructures (nanowires, ribbons, plates, sheets) of chalcogenide family of TIs (Bi2Se3, Bi2Te3 etc). In particular, we highlight the successful control of Fermi level to the Dirac point of SS by gating, TI to trivial insulator transition induced by doping, as well as the observation and investigation of a novel linear magneto-resistance effect.

Biography:

Prof. Gao was born in JiangXi province. He received his B.S. degree in Applied Physics from South China University of Technology in 1998. In 2003, he received his Ph.D. degree at Columbia University. His Ph.D. thesis was awarded the Robert Simon Memorial Prize for the most outstanding thesis by the Dept of Applied Physics and Applied Math of Columbia University. Between 2003 and 2007, he was postdoc first with Dr. Greg Boebinger at Los Alamos National Lab then Prof. Charles Lieber at Harvard University. In 2007, he joined Case Western Reserve University as a faculty member. He is currently an associate professor. Prof. Gao’s research areas include transport and many body physics in low dimensional electron systems; the rational synthesis, fundamental understanding and functional engineering of nanoscale materials and devices. His achievement was recognized by multiple awards such as the CAREER Award of National Science Foundation of the USA, the 2012 Outstanding Young Researcher Award of the International Organization of Chinese Physicists and Astronomers.

Welcome to attend!

文档附件

相关信息
联系我们 | 所长信箱 | 网站地图 | 友情链接
地址: 沈阳市沈河区文化路72号 邮编: 110016
管理员邮箱: office@imr.ac.cn
中国科学院金属研究所 版权所有 辽ICP备05005387号

官方微博

官方微信