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 2020학년도 1학기 콜로퀴움 일정 2020.01.31 203679
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 527650
597 <8/30(Fri) 16:00 ~ >Structures of light neutron-rich nuclei, 17,19C 2019.08.22 20847
596 <8/26(Mon) 14:00 ~ >Constructing viable models of bouncing scenarios 2019.08.20 20930
595 <8/19(Mon) 13:30 ~ >Detection of cosmic rays in the PeV to EeV energy range file 2019.08.16 21206
594 <8/14(Wed.)>3D-strain induced superconductivity in La2CuO4+δ using a simple vertically aligned nanocomposite approach 2019.08.13 21595
593 <8/19(Mon) 14:00 ~ >Exploring topological matter in an atomic quantum simulator file 2019.07.26 22275
592 2019학년도 2학기 콜로퀴움 일정 2019.07.17 378762
591 <June.12(Wed.)> Ribocomputing: Cellular Logic Computation using RNA Devices file 2019.06.07 24707
590 <June.5(Wed.)> Fluid gravity duality 2019.05.29 24217
» <May.22(Wed.)> Introduction to exotic quantum states in solids 2019.05.15 24047
588 <May.15(Wed.)> Three-body problems and three-body forces in Classic and Quantum Systems 2019.05.08 24029
587 <5/16(Thu.) 14:00 ~ >The Chiral anomaly without Landau levels 2019.05.08 22015
586 <May.8(Wed.)> Genesis of Matter 2019.05.01 23963
585 <May.1(Wed.)> Introduction of AMS Application 2019.04.24 24424
584 <April.17(Wed.)> Emerging Artificial Synapse for Learning- and Energy-Efficient Neuromorphic System 2019.04.11 23978
583 <April.10(Wed.)> 자성 반데르발스 물질 발견과 전망(Discovery and Perspective of magnetic van der Waals materials) 2019.04.04 23666
582 <April.3(Wed.)> 전자구조계산을 이용한 새로운 양자물질 연구 2019.03.27 24215
581 <Mar.27(Wed.)> Ultrafast Movie Maker for Photo-induced Dynamics: Ultrafast Electron Microscope 2019.03.20 26500
580 <Mar.20(Wed.)> Connecting Thermoelectricity and Superconductivity by Pressure Bridge 2019.03.13 25691
579 <Mar.13(Wed.)> Physics in Medicine: Magnetic Resonance Imaging 2019.03.07 28141
578 <3/11(Mon) 10:30 am ~ >Probing Dark Matter at LIGO and Beyond 2019.03.04 22062