时 间： 2018 年 5 月 2 日 10: 00 – 12: 00
地 点： 南五楼 612 学术报告厅
报 告 人： 孙年祥 教授， 美国东北大学
邀 请 人： 龚荣洲 教授
Abstract: The coexistence of electric polarization and magnetization in multiferroic materials provides great opportunities for realizing magnetoelectric coupling, including electric field control of magnetism, or vice versa, through a strain mediated magnetoelectric coupling in layered magnetic/ferroelectric multiferroic heterostructures. Strong magnetoelectric coupling has been the enabling factor for different multiferroic devices, which however has been elusive, particularly at RF/microwave frequencies. In this presentation, I will cover the most recent progress on new integrated magnetoelectric materials, magnetoelectric NEMS (nanoelectromechanical system) based sensors and antennas. Specifically, we will introduce magnetoelectric multiferroic materials, and their applications in different devices, including: (1) novel ultra-compact RF NEMS acoustic magnetoelectric antennas immune from ground plane effect with < 0/100 in size, self-biased operation and ground plane immunity; (2) ultra-sensitive RF NEMS magnetoelectric magnetometers with ultra-low noise of ~1pT/Hz1/2at 10 Hz for DC and AC magnetic fields sensing, which are the most sensitive room temperature nanoscale magnetometers, and (3) voltage tunable inductors, phase shifters, isolating bandpass filters, etc. These novel magnetoelectric devices show great promise for applications in compact, lightweight and power efficient sensors, antennas and tunable components for radars, communication systems, biomedical devices, IoT, etc.
Short Bio: Nian Sun is professor at the Electrical and Computer Engineering Department, Director of the W.M. Keck Laboratory for Integrated Ferroics, Northeastern University, and Thrust Leader of 2-D Multiferroics in the NSF ERC Transitional Applications of Nanoscale Multiferroic Systems (TANMS). He received his Ph.D. degree from Stanford University. Prior to joining Northeastern University, he was a Scientist at IBM and Hitachi Global Storage Technologies. Dr. Sun was the recipient of the NSF CAREER Award, ONR Young Investigator Award, the Søren Buus Outstanding Research Award, etc. His research interests include novel magnetic, ferroelectric and multiferroic materials, devices and subsystems. He has over 240 publications and over 20 patents and patent applications. One of his papers was selected as the “ten most outstanding full papers in the past decade (2001~2010) in Advanced Functional Materials”. Dr. Sun has given over 100 plenary or invited presentations and seminars in national and international conferences and universities. He is an editor of Sensors, and IEEE Transactions on Magnetics, and a fellow of the Institute of Physics, and of the Institution of Engineering and Technology.
One Hour Q&A Session after the Research Talk on the 3+2 Joint Education Program between HUST and NU
The joint education program was started in 2015 as a combined Certificate and Master of Science program (“C + MS”, or 3+2 program) with three years of undergraduate education at HUST + two years at NU. Students have the freedom to choose their advisors for the BS Thesis and MS thesis research at NU. Coop and job opportunities available after graduation.