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 1008973
462 <April. 27(Wed.) 4:30 PM> 로봇과 함께 살아갈 미래 2016.04.22 53023
461 <4/6(Wed.) 1pm> Results from DM-Ice17 2016.04.05 72778
» <April. 6(Wed.) 4:30 PM> Quantitative Determination of High Tc Superconductivity Mechanism 2016.03.31 109804
459 <March. 30(Wed.) 4:30 PM> Tetraneutron (four-neutron nucleus) 2016.03.24 64038
458 <March.24(Thu) 14:00> A new boson and muon g-2 2016.03.17 62367
457 <March. 23(Wed.) 4:30 PM> 조선시대의 천문시계 2016.03.17 55331
456 <March.18(Fri) 11:00> High Pressure Synthesis and Characterization of Non-Oxide Superconductors 2016.03.14 63637
455 <March. 16(Wed.) 4:30 PM> 초고속반도체의 블랙다이아몬드™,low-k 2016.03.10 69640
454 <March. 9(Wed.) 4:30 PM>가치 있는 대학 생활이란 무엇인가? file 2016.03.07 54537
453 <March 8(Tue) 18:00> Unsolved puzzles of Gamma-Ray Bursts 2016.03.03 63213
452 2016학년도 1학기 콜로퀴움 일정 2016.02.03 131711
451 <Dec.30(Wed) 16:30> Some basics about the thermoelectricity; the semi-classical Boltzmann transport approach 2015.12.24 63819
450 <Dec. 9(Wed.) 4:30 PM>Direct detection of dark matter at Underground 2015.12.03 70896
449 <Dec. 2(Wed.) 4:30 PM> Next-generation solar cells for high photo-conversion efficiency 2015.11.25 89518
448 <Nov. 25(Wed.) 4:30 PM> Present and Future of OLED 2015.11.19 71098
447 <Nov. 18(Wed.) 4:30 PM> Single-molecule chemistry and spectroscopy on ultrathin insulating films 2015.11.11 151085
446 <Nov. 11(Wed.) 4:30 PM> 그래핀 산업의 현황과 전망 2015.11.09 61429
445 <Nov.13(Fri) 16:00> Kondo screening in mixed valence and heavy fermion compounds and the signatures of Nozieres’ exhaustion 2015.11.04 105634
444 <Nov. 4(Wed.) 4:30 PM> 기능성 산화물과 그래핀을 접합한 나노소자의 특성 변화 2015.10.30 58888
443 <Oct.20(Tue) 10:00-12:00> Novel quantum transport in Weyl semimetals and double-Weyl semimetals 2015.10.23 76814