logo

korean english

게시판

Home > 게시판 > 세미나

양자물질초전도연구실에서 중앙대학교 물리학과 성맹제 교수님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참여를 부탁 드립니다.

-오프 혼합으로 진행되는 세미나입니다.

===========================================================================

Title: Valley Polarization and Exciton Hall Effect in Transition Metal Dichalcogenides


Speaker:       교수님 (중앙대학교 물리학과)


Date/time: 2021. 6. 23. (Wed.) 4:30PM


○ 온라인 참여방법: 아래의 WebEx 링크 접속

https://skku-ict.webex.com/meet/koko1977


Place: Natural Science 1,  Room No. 31214


Abstract: Transition metal dichalcogenides (TMDCs) have been an important research subject, due to their unique electrical and optical properties, for the last decade or so. TMDCs have two distinct electronic band extrema with different electron spin states, +K and K valleys. Valley polarization was demonstrated by creating excitons at a specific valley using circularly polarized light of proper helicity. Furthermore, valley-polarized exciton transport, driven by thermal or chemical potential gradients, can exhibit valley-dependent transverse motion originating from the Berry curvature difference in +K and K valleys, which is known as exciton Hall effect. In this talk, I will present survey on valley polarization as well as exciton Hall effect and recent work on them in our lab.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1060543
296 <July 8(Fri.)>Intertwined magnetism and charge density wave in a kagome metal 2022.06.03 942
295 <May. 10(Tue.)>Longitudinal magnon decay in the quasi-two-dimensional antiferromagnet in Ba2FeSi2O7 2022.05.09 1336
294 <May. 3(Tue.)>Anomalous Hall signatures of nonsymmorphic nodal lines in the doped chromium chalcospinel CuCr2Se4 2022.04.19 1437
293 <Jan. 27(Thu.)>Emulating twisted double bilayer graphene with a multiorbital optical lattice 2022.01.18 2360
292 <Nov. 29(Mon.)>Exploring light-matter interactions at atomic scale using electron microscopy 2021.11.22 6801
291 <Nov. 5(Fri.)>Strongly Coupled Moire Photonics 2021.11.01 37654
290 <Aug. 4(Wed.)>Electronic Properties of Mixed-dimensional 2D/3D Heterostructures 2021.08.04 71062
289 <Aug. 6(Fru.)> Gravitationally probing dark matter (DM) microphysics 2021.08.03 27088
288 <July 21(Wed.)> Strongly Correlative Ionics 2021.07.19 22955
287 <July 14(Wed.)> B1g phonon anomaly driven by Fermi surface instability at intermediate temperature in YBa2Cu3O7−δ 2021.07.13 38119
286 <July 7(Wed.)>Functional rare earth ionic defects and the related phenomena 2021.07.02 88611
285 <June 30(Wed.)>Mapping of magnetic anisotropy for van der Waals materials 2021.06.25 73991
» <June 23(Wed.)>Valley Polarization and Exciton Hall Effect in Transition Metal Dichalcogenides 2021.06.22 27503
283 <June 10(Thu.)>Oxide electronics utilizing spin-orbit coupling 2021.05.31 153495
282 <June 01(Tue.)>Frustration-induced Athermal Behaviors: Hilbert Space Fragmentation and Quantum Many-Body Scars 2021.05.24 38855
281 <May 04(Tue.)>Flat bands and the geometry of Bloch wave function 2021.04.27 67881
280 <Feb.18(Thu.)> Hund's metallicity in the vicinity of a Van Hove singularity / Correlated topological phases in strongly correlated heterostructures 2021.02.16 164508
279 <Jan.28(Thu.)>X-ray Absorption Spectroscopy Study of Amorphous Oxide Thin Films 2021.01.27 85735
278 <Jan.14(Thu.)>Oxygen sponge effects for epitaxial manganite thin film design 2021.01.11 222845
277 <11/5(Thu.)> Higher Spin Cooper Pairs 2020.10.27 90225