International Research Fellow Award: Novel Investigation of Individual Domain Switching in Ferroelectric Thin Films

[00:48 . 81]国际研究员奖励计划使美国科学家和工程师能够到国外进行三到二十四个月的研究。该计划的奖励为联合研究提供了机会，并利用独特或互补的设施、专业知识和国外的实验条件。该奖项将为Bryan D. Huey博士提供为期12个月的支持。G. Andrew D. Briggs和Oleg V. Kolosov在牛津大学。该项目由美国国家科学基金会数学和物理科学理事会多学科活动办公室共同资助。这个项目的题目是“铁电薄膜中单畴开关的新研究”。三个目标中的第一个目标是（如标题所示）开发一种用于研究单个铁电畴开关的新技术，具有唯一已知的纳米和纳秒尺度的同时分辨率。其次，作为位置的函数，单个域的开关响应将从毫秒到纳秒进行表征。第三，将确定单独寻址域之间的最小间隔，以确保方向稳定性作为交换速度的函数。这项研究将是在技术相关的时间尺度上唯一已知的对个体域切换的直接研究。安德鲁·布里格斯在超声波和扫描探头测量和理论方面有着广泛的背景。奥列格·科洛索夫（Oleg Kolosov）共同发明了超声波力显微镜（UFM），因此在UFM的开发和应用方面具有丰富的经验。他之前在铁电畴操纵方面进行了开创性的研究。

0000481HueyThe International Research Fellow Awards Program enables U.S. scientists and engineers to conduct three to twenty-four months of research abroad. The program's awards provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad.This award will provide Dr. Bryan D. Huey with support for twelve months to work with Drs. G. Andrew D. Briggs and Oleg V. Kolosov at Oxford University. This project is co-funded by NSF's Directorate for Mathematical and Physical Sciences' Office of Multidisciplinary Activities. The project is entitled "Novel Investigation of Individual Domain Switching in Ferroelectric Thin Films."The first of three objectives is (as the title indicates) the development of a novel technique for the study of individual ferroelectric domain switching, with the only known simultaneous resolution at nanometer and nanosecond scales. Second, the switching response of individual domains will be characterized from milliseconds to nanoseconds, as a function of position. Third, the minimum separation between individually addressed domains will be determined to ensure orientation stability as a function of switching speed. This research will be the only known direct study of individual domain switching at technologically relevant time scales.Andrew Briggs has extensive background in ultrasonic and scanning probe measurements and theory. Oleg Kolosov jointly invented Ultrasonic Force Microscopy (UFM) and therefore has considerable experience with UFM development and application. He previously performed pioneering research into ferroelectric domain manipulation.