korean english


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


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 1091920
256 <June 8(Wed.) 4:30 PM> 세계와 우리나라 우주개발 도전 2016.06.01 55929
255 <June 1(Wed.) 4:30 PM> 중력으로 강한 핵력 이해하기 2016.05.26 54424
254 <May. 25(Wed.) 4:30 PM> Functional Materials @ Nanoscale: Electronics, Energy and ‘Green’Healthcare Applications 2016.05.23 197276
253 <May. 18(Wed.) 4:30 PM> Search for Hidden Neutrinos at the High Energy Frontier 2016.05.23 54734
252 <May. 11(Wed.) 4:30 PM> In-situ x-ray studies of functional oxides for energy systems 2016.05.23 69749
251 <May. 4(Wed.) 4:30 PM> 플라즈마를 이용한 표면처리 기술 2016.04.27 54985
250 <April. 27(Wed.) 4:30 PM> 로봇과 함께 살아갈 미래 2016.04.22 55135
» <April. 6(Wed.) 4:30 PM> Quantitative Determination of High Tc Superconductivity Mechanism 2016.03.31 155576
248 <March. 30(Wed.) 4:30 PM> Tetraneutron (four-neutron nucleus) 2016.03.24 72635
247 <March. 23(Wed.) 4:30 PM> 조선시대의 천문시계 2016.03.17 57781
246 <March. 16(Wed.) 4:30 PM> 초고속반도체의 블랙다이아몬드™,low-k 2016.03.10 75730
245 <March. 9(Wed.) 4:30 PM>가치 있는 대학 생활이란 무엇인가? file 2016.03.07 56693
244 2016학년도 1학기 콜로퀴움 일정 2016.02.03 134298
243 <Dec. 9(Wed.) 4:30 PM>Direct detection of dark matter at Underground 2015.12.03 77243
242 <Dec. 2(Wed.) 4:30 PM> Next-generation solar cells for high photo-conversion efficiency 2015.11.25 108436
241 <Nov. 25(Wed.) 4:30 PM> Present and Future of OLED 2015.11.19 76113
240 <Nov. 18(Wed.) 4:30 PM> Single-molecule chemistry and spectroscopy on ultrathin insulating films 2015.11.11 188711
239 <Nov. 11(Wed.) 4:30 PM> 그래핀 산업의 현황과 전망 2015.11.09 63648
238 <Nov. 4(Wed.) 4:30 PM> 기능성 산화물과 그래핀을 접합한 나노소자의 특성 변화 2015.10.30 61210
237 <Oct. 28(Wed.) 4:30 PM> Anomalous diffusion of single-molecules in living cells: at the interface of biology and statistical physics 2015.10.19 118588