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 206260
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 529543
615 2019학년도 2학기 콜로퀴움 일정 2019.07.17 379130
614 <5/16(토)> 세미나 개최 안내 2015.05.18 114490
613 2016학년도 1학기 콜로퀴움 일정 2016.02.03 108539
612 2017학년도 1학기 콜로퀴움 일정 2017.01.05 107092
611 2019학년도 1학기 콜로퀴움 일정 2019.01.08 95959
610 2018학년도 2학기 콜로퀴움 일정 2018.07.03 89623
609 2018학년도 1학기 콜로퀴움 일정 2018.01.03 83167
608 2014학년도 2학기 콜로퀴움 일정 2014.09.11 79818
607 2017학년도 2학기 콜로퀴움 일정 2017.07.04 76836
606 <4/2> Radio Detection of Ultra High Energy Cosmic Rays and Neutrinos in Antarctica 2014.03.26 73499
605 <5/1>In vivo optical imaging of hemodynamic changes 2009.05.06 72411
604 <6/2> The black hole search at the LHC: critical comment 2011.06.01 72252
603 <9/1> 원자핵 자기공명(Nuclear Magnetic Resonance) 해설 - 원자선에서 영상까지 2010.08.30 71982
602 <10/28>Grazing Incidence X-ray Diffraction and Surface X-ray Scattering Study of Hematite (α-Fe2O3) Nano-cube 2011.10.26 70993
601 BK 석학초청 특별세미나 - Frustration and dimensional reduction in multi-orbital systems 2011.10.28 70764
600 <4/19> Nuclear Reaction Theories 2011.04.14 70618
599 <9/15> Resistance Switching Behavior of Epitaxially Grown NiO Thin Films 2009.09.07 70534
598 2016학년도 2학기 콜로퀴움 일정 2016.08.02 69052