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 1089718
276 <May 10(Wed.) 4:30 PM>Trend and beyond of semiconductor technology (반도체 미세화 및 신기술 동향) 2017.05.04 56593
275 <April. 12 (Wed.) 4:30 PM>디랙물질을 통해서 본 강상관 계의 양자 홀로그래피적 조명: 2017.04.05 51767
274 <April. 5 (Wed.) 4:30 PM>Majorana quasiparticles emergent in Kitaev quantum magnets 2017.03.31 84804
273 <Mar. 29(Wed.) 4:30 PM>Search for New Elements 2017.03.22 105587
272 <Mar. 22(Wed.) 4:30 PM>Symmetry and topology in the electronic structure of solids 2017.03.15 57232
271 <Mar. 15(Wed.) 4:30 PM>반도체 Fab Process와 물리학 전공자 2017.03.14 54704
270 2017학년도 1학기 콜로퀴움 일정 2017.01.05 332448
269 <Dec. 14(Wed.) 4:30 PM>중력과 양자 얽힘 (tentative) 2016.12.07 54837
268 <Dec. 7(Wed.) 4:30 PM>Mechanotransduction of cells in vitro(세포기능의 역학적 조절) 2016.11.30 85083
267 <Nov. 30(Wed.) 4:30 PM> Chiral solitons for topological informatics 2016.11.23 82578
266 <Nov. 23(Wed.) 4:30 PM> Dry (Plasma) etch process in Semiconductor Device 2016.11.16 63140
265 <Nov. 16(Wed.) 4:30 PM> Two-dimensional Chiral Materials and Topological Insulators 2016.11.10 204445
264 <Nov. 9(Wed.) 4:30 PM> 20-nm resolution imaging of brain circuitry by next-generation expansion microscopy 2016.11.02 54705
263 <Nov. 2(Wed.) 4:30 PM> 현대 우주론 이론과 관찰 (Theories and observations of modern cosmology) 2016.10.19 56108
262 <Oct. 19(Wed.) 10:00 AM> Hyper-Kamiokande project -The future of neutrino physics in Japan 2016.10.12 63991
261 <Oct. 12(Wed.) 4:30 PM> Silk as a biocompatible optical material 2016.10.05 66815
260 <Oct. 5(Wed.) 4:30 PM> 국제원자력기구 (IAEA)와 핵데이터 2016.09.22 63911
259 <Sep. 21(Wed.) 4:30 PM>광자질량의 물리학 2016.09.19 56750
258 <Sep. 7(Wed.) 4:30 PM>Manipulating spins in topological insulators 2016.09.02 90963
257 2016학년도 2학기 콜로퀴움 일정 2016.08.02 97045