南京航空航天大学 理学院

Self-assembly has been approved to be a useful method to fabricate oxide thin films with a rich variety of periodic nanoscale patterns. Recent efforts have been focused on how to make the self-assembly controllable. In a film-on-substrate geometry, epitaxial composite films can be divided into two forms: horizontal and vertical. Success of the investigation critically replies on obtain and manipulation of these two architectures. In the present work, horizontally and vertically aligned nanostructures have been obtained in (YBa2Cu3O7-δ)0.5:(BaZrO3)0.5 and (BiFeO3)0.5:(Sm2O3)0.5 thin films respectively. And the manipulation between the vertical and horizontal architectures has been realized in (YBa2Cu3O7-δ)1-x:(BaZrO3)x systems by simply changing the composition of BaZrO3, which resulted from interplay between surface effect and bulk phase separation. The nanostructures dependent lattice constants, strain state, and electrical properties have also been investigated. More details will be presented in the talk.

报告人简介：
杨浩，南京航空航天大学理学院，教授。2000年毕业于武汉大学物理系，获学士学位。同年进入滚球自动投注攻读博士，2005年毕业并获理学博士学位。2006年2月至2009年7月先后作为Director’s Postdoctoral Fellow和助理研究员在美国Los Alamos国家实验室工作。2009年8月至2015年4月在苏州大学物理科学与技术学院工作，2015年5月加入南京航空航天大学理学院。主要从事人工结构氧化物薄膜和铁电、压电以及多铁性薄膜的研究。已在Adv. Mater., Nat. Mater., PRL, Adv. Funct. Mater., APL等国际期刊发表论文70余篇，研究成果被包括美国国家航空航天局在内的机构和期刊引用。曾获美国Los Alamos国家实验室Director’s Postdoctoral Fellow、德国洪堡基金会Humboldt Research Fellowship、江苏省第十三批“六大人才高峰”等称号。作为课题负责人，主持国家自然科学基金委项目五项。

联系人：罗会仟(82649816, hqluo@iphy.ac.cn)

本次活动由中科院物理所青促会小组主办