logo

korean english

게시판

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 1056346
26 <April 21(Wed.)> 우주배경복사 편광 관측 - 남극점 기지 바이셉/켁 어레이(BICEP/Keck Array) 망원경 2021.04.12 9666
25 <April 28(Wed.)> 손에 잡히는 AI 2021.04.21 10145
24 <May 12(Wed.)> Nanomechanical oscillators for quantum technology 2021.05.06 20278
23 2021학년도 2학기 콜로퀴움 일정 2021.07.01 125730
22 <Sep. 8(Wed.)> Utilizing physics to build a trapped-ion quantum computer 2021.09.01 17332
21 <Sep. 15(Wed.)> 강화학습 - 시행착오를 통해 배워나가는 인공지능 2021.09.08 4978
» <Sep. 29(Wed.)> Longitudinal Spin Seebeck effect in Pt/YIG structure with monolayer WSe2 and MoS2 interlayer 2021.09.16 92186
19 <Oct. 6(Wed.)> 블랙홀에서 쌍꺼풀수술까지 2021.09.29 5729
18 <Oct. 13(Wed.)> Electric Quantum Oscillation: A New Form of Quantum Oscillation 2021.10.06 35073
17 <Oct. 27(Wed.)> How interactions shape ecological communities 2021.10.20 31746
16 <Nov. 3(Wed.)>시공간의 구조: 상대성이론, 특이점, 우주상수 2021.10.28 8835
15 <Nov. 10(Wed.)>Optical Spectroscopy of 2-Dimensional Materials 2021.11.03 7180
14 <Nov. 17(Wed.)>펜로즈의 삼각형과 블랙홀 - 부분과 전체 2021.11.11 3988
13 <Dec. 1(Wed.)>Halide Perovskite Single Crystals and Thin Films for Solar Cells and Optoelectronics 2021.11.25 189609
12 2022학년도 1학기 콜로퀴움 일정 2022.01.10 39507
11 <Mar. 2(Wed.)>Introduction to high-energy nuclear physics 2022.02.24 2056
10 <Mar. 16(Wed.)> 현세대/차세대 이차전지 기술 동향 및 전망 2022.03.02 1601
9 <Mar. 23(Wed.)> Next-generation artificial intelligence devices and physics 2022.03.16 2753
8 <Mar. 30(Wed.)> Two-dimensional Semiconductors and their applications 2022.03.23 1569
7 <Apr. 6(Wed.)> Holographic Flat Panel Displays 2022.03.30 1742