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 1090352
618 <3/12(화)>물리학과 특별초청강연 개최 안내 2013.03.04 135514
617 <Nov.13(Fri) 16:00> Kondo screening in mixed valence and heavy fermion compounds and the signatures of Nozieres’ exhaustion 2015.11.04 134959
616 <5/3> High-Speed MOSFET Technology: State-of-the-Art Strain Engineering 2006.05.02 134666
615 2016학년도 1학기 콜로퀴움 일정 2016.02.03 134233
614 <3/19> Bioconjugates of nanomaterials for biochip & biosensor applications 2010.03.16 134201
613 <10/17> Graphitic Carbon Nanostructures 2008.10.27 133948
612 <4/4> Novel multi-bit magnetic tagging technique for high-throughput chemical analysis 2008.03.31 133720
611 <5/29> Nanomaterials Work at NASA-Johnson Space Center 2009.05.25 133402
610 <4/21> Experimental and Observational Astrophysics in the Infrared Wavebands 2009.04.17 132691
609 <12/3> Characteristic of risk asset in financial market. 2010.11.29 132321
608 <4/14> X-ray absorption fine structure analyses on amorphous oxide films 2009.04.06 131146
607 <April.17(Wed.)> Emerging Artificial Synapse for Learning- and Energy-Efficient Neuromorphic System 2019.04.11 130641
606 <7/21(월)> The rapid neutron capture nucleosynthesis: A hot topic in the Nuclear Astrophysics study 2014.07.15 130185
605 2019학년도 1학기 콜로퀴움 일정 2019.01.08 129983
604 <10/28>Grazing Incidence X-ray Diffraction and Surface X-ray Scattering Study of Hematite (α-Fe2O3) Nano-cube 2011.10.26 129881
603 <5/1>In vivo optical imaging of hemodynamic changes 2009.05.06 129740
602 <4/30(화)> DC (DNA Curtains) and AC (Actin Curtains) in single-molecule biophysics 2013.04.11 128602
601 <12/21(금)> Theory of topological quantum phase transitions in 3D noncentrosymmetric systems 2012.12.05 128368
600 <7/20(Thu.)14:00>Engineering and probing topological properties of Dirac semimetal films by asymmetric charge transfer 2017.07.18 127443
599 <3/26> Fractional Hall Physics of Epitaxial Graphene: 2010.03.19 127319