logo

korean english

게시판

Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.

4시 20분부터 제1과학관 31214 e+강의실에서 다과를 준비하오니 많은 참석 부탁드립니다.



아 래


Title: Quantitative Determination of High Tc Superconductivity Mechanism


Speaker: Prof. Han-Yong Choi (SKKU & APCTP)


Date & Time: April. 6(Wed.) 2016, 4:30 PM


Place: Natural Science 1,  Room No. 31214


Abstract:

After all some thirty years of intense research into the cuprate superconductors, the mechanism of high Tc superconductivity ever remains elusive. One may wonder why – why the high Tc problem is so difficult. This talk is my 50 minute answer to that question. As a prelude I will walk the audience through the problems of the low Tc superconductors which Bardeen, Cooper, Schrieffer, Eliashberg, and McMillan faced and the ideas they eventually came up with. For cuprates, it is established that superconductivity is also from pairing, but of the d-wave symmetry. The root of the high Tc conundrum lies in the requirement that the superconductivity must be understood together with the pseudogap and anomalous normal states in their totality. Leading ideas for high Tc superconductivity mechanism consistent with the d-wave pairing are the resonating valence bond, the loop current order, and the antiferromagnetic spin fluctuations scenarios. Perhaps one of the best ways to differentiate among the proposals is to determine the frequency and momentum dependence of the self-energy from experiments and compare it with the proposed ideas. This procedure may be implemented, it turns out, by using the ultra high resolution laser angle resolved photoemission spectroscopy (ARPES). The extracted self-energy from Korea-China-US collaboration from ARPES analysis of Bi2212 cuprates will be presented and discussed from this perspective.


번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1090776
78 <3/27>Social Experience, Brain, and Behavior 2009.03.23 139789
77 <5/2>방사선을 이용한 무통/무혈 수술 2008.04.28 140077
76 <5/16(Thu.) 14:00 ~ >The Chiral anomaly without Landau levels 2019.05.08 140631
75 <3/26> Shedding infrared light on high-Tc superconductors 2014.03.19 141036
74 2021학년도 2학기 콜로퀴움 일정 2021.07.01 141340
73 <7/25(목) 오전11시> 물리학과 특별세미나 개최 안내 2013.07.19 142719
72 2018학년도 2학기 콜로퀴움 일정 2018.07.03 143760
71 <11/6> Scaling laws between facility and population densities 2009.11.04 143808
70 <11/22>A Glimpse of X-ray Sky 2006.11.16 144153
69 <12/21(금)> Theory of topological quantum phase transitions in 3D noncentrosymmetric systems 2012.12.05 144333
68 2021학년도 1학기 콜로퀴움 일정 2021.01.13 146641
67 <Oct.16(Wed.)> 솟구치는 초고에너지 입자의 미스테리 2019.10.10 147557
66 <9/26> Organic Polymers as Nuclear Radiation Sensors 2012.09.20 148588
65 <4/6> Knowledge is power: Maxwell's demon in the quantum wonderland 2011.03.31 148910
64 <5/30> DNA 나노기술(DNA Nanotechnology) 2008.05.26 149864
63 <Oct. 20(Tue.) 2:00 PM> High-throughput Synthesis of Oxide Thin Films 2015.10.05 150912
62 <11/11>Leptogenesis in triplet seesaw models 2006.11.08 154703
» <April. 6(Wed.) 4:30 PM> Quantitative Determination of High Tc Superconductivity Mechanism 2016.03.31 154828
60 <April 7(Wed.)> Mid-scale facilities for condensed matter research: high magnetic field and neutron scattering 2021.03.31 155192
59 <10/8>"Einstein was wrong?"--Two-proton spin- correlation measurement for EPR paradox. 2010.10.04 157434