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Host: Prof. Liang Liu
Venue: TDLI Meeting Room N600
Tencent Meeting link: https://meeting.tencent.com/dm/sTkt6voC7m3G
Meeting ID: 431277518, no password
Abstract:
Ferroelectrics feature spontaneous electric dipolar order that can be reconfigured by electric fields. Recent theoretical studies of the collective excitations of this electric dipolar order give rise to the hope that these ‘ferron’ quasiparticles may complement the magnons of magnetic materials in information and heat management technologies. Yet direct experimental evidence of ferron transport has remained elusive. Here we demonstrate efficient ferron injection and detection enabled by ferromagnetic metal contacts, achieving non-local signal transmission up to tens of micrometer distances in several ferroelectric materials. The transmission efficiency can be modulated by external magnetic fields that couple to the contacts and switched by gate electric fields that control the ferroelectric polarization. Ferron-based devices open new energy efficient strategies that employ ferroelectric materials in a future sustainable information society.
Biography:
Dr. Xianzhe Chen is currently a Youth Researcher at the College of Integrated Circuits & Micro-Nano Electronics, Fudan University. He received his B.S. and Ph.D. degrees from Tsinghua University in 2015 and 2020 respectively. From 2020 to 2021, he conducted postdoctoral research at the University of Tokyo with support from the JSPS Fellowship. Between 2021 and 2024, he pursued postdoctoral work at the University of California, Berkeley, and Lawrence Berkeley National Laboratory. He joined Fudan University in 2024. His research mainly focuses on spintronic materials and devices. He has published more than 10 papers as first or corresponding author in journals including Nature, Nature Materials, Nature Electronics, and Physical Review Letters.