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 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1090646
336 <Oct.16(Wed.)> 솟구치는 초고에너지 입자의 미스테리 2019.10.10 147473
335 <Oct.2(Wed.)> Fundamental physics with high-energy atmospheric and cosmic neutrinos today and in the future 2019.09.26 72035
334 <Sept.18(Wed.)> Rare-earth: versatility and capability 2019.09.16 89434
333 <Sept.11(Wed.)> Fantastic physics and materials, how to find them? 2019.09.06 91550
332 2019학년도 2학기 콜로퀴움 일정 2019.07.17 428930
331 <June.12(Wed.)> Ribocomputing: Cellular Logic Computation using RNA Devices file 2019.06.07 244137
330 <June.5(Wed.)> Fluid gravity duality 2019.05.29 68708
» <May.22(Wed.)> Introduction to exotic quantum states in solids 2019.05.15 80046
328 <May.15(Wed.)> Three-body problems and three-body forces in Classic and Quantum Systems 2019.05.08 76124
327 <May.8(Wed.)> Genesis of Matter 2019.05.01 42222
326 <May.1(Wed.)> Introduction of AMS Application 2019.04.24 70312
325 <April.17(Wed.)> Emerging Artificial Synapse for Learning- and Energy-Efficient Neuromorphic System 2019.04.11 130663
324 <April.10(Wed.)> 자성 반데르발스 물질 발견과 전망(Discovery and Perspective of magnetic van der Waals materials) 2019.04.04 49169
323 <April.3(Wed.)> 전자구조계산을 이용한 새로운 양자물질 연구 2019.03.27 47756
322 <Mar.27(Wed.)> Ultrafast Movie Maker for Photo-induced Dynamics: Ultrafast Electron Microscope 2019.03.20 95535
321 <Mar.20(Wed.)> Connecting Thermoelectricity and Superconductivity by Pressure Bridge 2019.03.13 58719
320 <Mar.13(Wed.)> Physics in Medicine: Magnetic Resonance Imaging 2019.03.07 64378
319 2019학년도 1학기 콜로퀴움 일정 2019.01.08 130001
318 <Dec.12(Wed.)> First-principles studies of complex oxides interfaces 2018.12.05 66236
317 <Dec.5(Wed.)> 두 펄사 이야기 2018.11.28 162776