logo

korean english

게시판

Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.


4시 20분부터 제1과학관 31214 e+강의실에서 간단한 다과를 제공합니다.


                       아      래


Title: Introduction to exotic quantum states in solids


Speaker: 조  준  형  교수님 (한양대학교 물리학과)


Date & Time: May. 22. (Wed.) 2019 4:30 PM


Place: Natural Science 1,  Room No. 31214


Abstract: Low-dimensional electron systems realized in ultrathin metal/semiconductor interfaces and layered two-dimensional (2D) materials have attracted much attention in contemporary condensed-matter physics because they tend to exhibit an interesting variety of exotic quantum states, such as charge density waves (CDW), spin orderings, Mott physics, and superconductivity. These macroscopic quantum condensates are associated with the interactions of quasiparticles that involve the charge, the lattice, the orbital, and the spin degrees of freedom. In this talk, I will present our recent first-principles studies of low-dimensional electron systems such as indium wires on Si(111) [1], 2D transition-metal-dichalcogenide material TaS2 [2], and 2D kagome lattices Fe3Sn2 and FeSn [3]. I also discuss a recent hot issue of room-temperature superconductivity that has been one of the most challenging subjects in modern physics. Recent experiments reported that lanthanum hydride LaH10 raises a superconducting transition temperature Tc up to ~260 (or 250) K at high pressures around 190 (170) GPa. Our first-principles calculations elucidate the microscopic mechanism of the observed high-Tc BCS-type superconductivity in LaH10, which can
be generic to another recently observed high-Tc hydride H3S [4].


[1] S. W. Kim et al., Phys. Rev. B 93, 241408(R) (2016); Phys. Rev. Lett. 113, 196802 (2014); Phys. Rev. Lett. 110, 116801 (2013); Phys. Rev. Lett. 106, 026801 (2011).
[2] S. Yi et al., Phys. Rev. B 97, 041413(R) (2018).
[3] Z. Lin et al., Phys. Rev. Lett. 121, 096401 (2018).
[4] L. Liu et al., Phys. Rev. B 99, 140501(R) (2019).

번호 제목 날짜 조회 수
공지 2022학년도 1학기 콜로퀴움 일정 2022.01.10 28556
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 976467
580 <June.5(Wed.)> Fluid gravity duality 2019.05.29 50804
579 <Nov.18(Wed.)>When Physics meets the Living Cells 2020.11.11 50890
578 <Dec.13(Wed.) 4:30 PM>기본에 충실하고 새로움에 도전한다 - 자율주행자동차의 핵심 기술들 – 2017.12.07 51375
577 <April 25(Mon) 16:30> Neutron Recoil Polarization in Low‐energy Photodisintegration of the Deuteron 2016.04.25 51556
576 <May.2(Wed.) 4:30 PM> Machine learning and statistical physics 2018.04.23 51571
575 <12/2(Fri.) 14:00>Overview of HIMAC facility 2016.12.01 51788
574 <Nov. 9(Wed.) 4:30 PM> 20-nm resolution imaging of brain circuitry by next-generation expansion microscopy 2016.11.02 51860
573 <June 1(Wed.) 4:30 PM> 중력으로 강한 핵력 이해하기 2016.05.26 51926
572 <Dec. 14(Wed.) 4:30 PM>중력과 양자 얽힘 (tentative) 2016.12.07 51995
571 <May. 18(Wed.) 4:30 PM> Search for Hidden Neutrinos at the High Energy Frontier 2016.05.23 52093
570 <Mar. 15(Wed.) 4:30 PM>반도체 Fab Process와 물리학 전공자 2017.03.14 52157
569 <8/5(Fri.) 10:30> Phase Slips in Superfluid Spin Transport in Magnetic Wires 2016.08.02 52252
568 <May. 4(Wed.) 4:30 PM> 플라즈마를 이용한 표면처리 기술 2016.04.27 52328
567 <April. 27(Wed.) 4:30 PM> 로봇과 함께 살아갈 미래 2016.04.22 52458
566 <Nov. 2(Wed.) 4:30 PM> 현대 우주론 이론과 관찰 (Theories and observations of modern cosmology) 2016.10.19 52473
565 <June 8(Wed.) 4:30 PM> 세계와 우리나라 우주개발 도전 2016.06.01 52581
564 <Mar. 22(Wed.) 4:30 PM>Symmetry and topology in the electronic structure of solids 2017.03.15 53077
563 <Dec.4(Wed.)>2D materials based metasurfaces & THz near-field spectroscopy 2019.11.27 53150
562 <Dec.5(Wed.)> 두 펄사 이야기 2018.11.28 53228
561 <10/13(Thu.) 13:00>기술융합을 통한 의료혁명과 물리학의 역할 2016.09.29 53413