学术报告: Artificial Quantum Materials by Design of Correlated Oxide Interfaces
报告人: Jian Liu
Department of Physics & Astronomy
University of Tennessee
As modern technologies are dominated by interface-derived materials, such as semiconductor heterojunctions, oxide heterostructures are an emerging frontier in hunting for the next generation of functional materials. Complex oxides are a class of quantum materials where the electrons strongly interact with each others and self-organize into a diverse variety of intriguing competing phases, such as superconductivity, magnetism, and multiferroics. Interfacing oxides with distinct ground states provides a fascinating platform at nanoscale for controlling, designing and artificially creating innovative correlated systems that are unobtainable by conventional solid state chemistry. The interplay among the entangled charge, spin, and orbital degrees of freedom at interfaces also affords a unique approach for comprehending the underlying correlated physics. In this talk I will discuss utilization of epitaxial interfaces for driving metal-insulator transition, orbital polarization, spin dynamics, magnetic anisotropy and topological semimetallicity. I will summarize our investigations on several model systems involving 3d and 5d correlated electrons. Experimental results from atomic layering growth of heterostructures to advanced synchrotron-based characterizations will be discussed to illustrate findings that facilitate quantum materials by design.
报告人简介：南京大学获学士学位，美国休斯顿大学获硕士学位，美国阿肯色大学获博士学位。曾在美国加州大学伯克利分校及劳伦斯伯克利国家实验室从事博后研究。现任田纳西大学物理与天文系助理教授。曾获阿肯色大学The Raymond H. Hughes Graduate Fellowship (每年为1-2个毕业生授予的最高奖项)和The Robert D. Maurer Research Fellowship; 获劳伦斯伯克利国家实验室Advanced Light Source Doctoral Fellowship (全世界每年获奖者8-9人)以及APS授予的The Iris Ovshinsky Award (每年8人)。2015年APS三月会议的Session Chair。担任PRL, PRB, AIP Advances, APL, JAP等期刊审稿人。在Nat. Commum., PRL, Nano Lett., PRB, Adv. Mater., Nanoscale等期刊发表多篇论文，总引用750余次，H因子17。