講座編號：jz-yjsb-2022-y011
講座題目：Materials for Spintronics and 2D Electronics
主 講 人：Dr. Ashutosh Tiwari 美國猶他大學材料科學與工程學院教授
講座時間：2022年4月22日（星期五）上午10:00
講座地點：騰訊會議，會議ID：256 844 581
參加對象：人工智能學院師生、對報告感興趣的師生
主辦單位：人工智能學院、研究生院
主講人簡介：
Dr. Ashutosh Tiwari為美國猶他大學材料科學與工程學院教授、納米結構材料研究實驗室主任。Tiwari教授特別專注于低維系統，如薄膜、納米點和多層結構等領域的研究，迄今已在Physical Review Letters、Advanced Functional Materials、Applied Physics Letters、Scientific Reports等國際知名期刊上發表了130多篇同行評議的研究文章，并擁有8項美國專利，目前的h指數是45。Tiwari教授獲得包括美國國家自然科學基金（NSF）職業獎（Career Award）、TMS青年領袖獎、PRF博士新研究員獎、美國空軍暑期教授獎學金(SFFP)和美國國家發明家科學院高級成員獎等獎項。Tiwari教授是多家期刊的編輯委員會成員，其中包括自然出版集團旗下的期刊《Scientific Reports》。
主講內容：
Spintronics represents a new paradigm of electronics that utilizes both the electron’s charge as well as its spin degrees of freedom. It has the potential to facilitate a new generation of devices possessing high-speed, large memory and ultra-low power consumption. The most critical step in the functioning of a spintronic device is the injection and detection of spin-polarized carriers at the ferromagnet-semiconductor interface. Despite considerable efforts, efficient injection of spins into nonmagnetic semiconductors still continues to be a major hurdle in this field. In this talk, I will present some of our very exciting research going on in this field in my group at the University of Utah. Particular focus will be on the injection and detection of spin polarized carriers in semiconductors using electrical and thermal routes. In the later part of my talk, I will also discuss about new oxide-based 2D material systems being investigated in our laboratory.