korean english


Home > 게시판 > 세미나

이번 학기 콜로퀴움은 학교의 권고를 따라, 사회적 거리두기 단계와 연계하여 온라인 혹은 오프라인(온라인 방송 병행)으로 운영될 예정입니다.

세번째 강연에는 중앙대학교 물리학과의 이상권 교수님을 모시고 콜로퀴움을 개최하오니, 학과 구성원 여러분의 많은 참여를 부탁 드립니다.

코로나19 확산방지를 위해 다과는 제공하지 않습니다.

                                       아            래

1. Title: Longitudinal Spin Seebeck effect in Pt/YIG structure with monolayer WSe2 and MoS2 interlayer

2. Speaker: 이  상  권  교수님 (중앙대학교 물리학과)

3. Date & Time: Sep. 29(Wed.) 2021.  4:30 PM

4. Place: Natural Science 1,  Room No. 31214

 5. Abstract: In this talk, I will present a novel approach for enhancing the spin current injected into a normal metal, Pt, using interface effects with a ferromagnetic insulator, yttrium iron garnet (YIG). This was accomplished by inserting atomically thin monolayer (ML), tungsten diselenide (WSe2) between Pt and YIG layers using longitudinal spin Seebeck effect (LSSE) measurements. We found that the insertion of ML WSe2 between the Pt and YIG layers significantly enhanced the thermopower, VLSSE/T by a factor of approximately 5.6 compared with that of the Pt/YIG reference sample. This enhancement in the measured LSSE voltages in the Pt/ML WSe2/YIG trilayer can be explained by the increased spin-to-charge conversion at the interface owing to the large spin-orbit coupling and improved spin mixing conductance with the ML WSe2 intermediate layer. We also discuss the enhanced spin current in terms of magnetic properties of the chalcogenide materials. At the end of my talk, I will briefly introduce the research topics that we are currently conducting in our research laboratory in Chung-Ang University.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1030542
366 <Oct.14(Wed.)>New Ways to Search for the Dark World 2020.10.12 14855
365 <Sep.23(Wed.)>나는 내 마음이야 2020.09.16 15666
364 <May 12(Wed.)> Nanomechanical oscillators for quantum technology 2021.05.06 18167
363 <Sep.16(Wed.)>Artificial Crystal 2020.09.14 18511
362 <Oct. 27(Wed.)> How interactions shape ecological communities 2021.10.20 21062
361 <Mar.17(Wed.)> Glue spectrum for superconductivity obtained via optical spectroscopy 2021.03.10 24261
360 <Nov.11(Wed.)>Nonlinear optics to study charge, spin, and crystalline structures 2020.11.04 26759
359 <Oct. 13(Wed.)> Electric Quantum Oscillation: A New Form of Quantum Oscillation 2021.10.06 28907
358 <Mar.31(Wed.)> Nonlinear nanophotonics using on-chip microring resonator 2021.03.25 31400
357 <Dec.2(Wed.)>The era of gravitational waves, and the science that makes it possible 2020.11.25 34455
356 <Oct.28(Wed.)> Physics of Global Warming 2020.10.22 34465
355 2022학년도 1학기 콜로퀴움 일정 2022.01.10 34507
354 <Nov.13(Wed.)>The Science of Quark-Gluon Plasma 2019.11.06 34787
353 <Mar.10(Wed.)> Dark matter searches in neutrino detectors 2021.03.04 39099
352 <Dec.11(Wed.)>데이터 과학으로서의 물리학. 그리고 금융투자업 2019.12.04 39263
351 <May.8(Wed.)> Genesis of Matter 2019.05.01 40529
350 <Mar.24(Wed.)> A tale of quantum magnets 2021.03.18 41030
349 <Oct.31(Wed.) 4:30 PM> 산업에서 활용되는 수학의 세계, 산업수학이란? 2018.10.22 41607
348 <Oct.17(Wed.) 4:30 PM> CMS 실험에서의 Machine Learning활용 2018.10.12 42450
347 <April.18(Wed.) 4:30 PM>금속의'블랙스완' 2018.04.11 42963