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


제목: Quantum Critical Superconductivity


연사: 박   두   선 교수님 (성균관대학교)


일시: 2013년 5월 15일(수) 오후4:30


장소: 제1과학관 31214  e+첨단강의실 


초록: Superconductivity (SC) is a remarkable realization of a macroscopic quantum state in the real world. Electrons are paired to coherently carry the current without resistance, and the quantum state is protected by formation of the superconducting gap. In conventional superconductors, the SC pairs are mediated by collective ionic motion or phonons and the SC order parameter (or the orbital wave-function of the pairs) is momentum independent (s-wave). Recently, new classes of unconventional superconductors have been discovered, where the SC order parameter is momentum dependent. This is highly suggestive of a completely different pairing mechanism, i.e., a non-phonon glue. The most well-known examples are high-Tc cuprates, organic superconductors, and heavy fermion superconductors, which are shown to have a d-wave pairing symmetry. Proximity of the unconventional superconductors to an antiferromagnetic ground state prompted a scenario that collective spin motion (spin waves), mediate the electron pairs and that the d-wave order parameter is a natural consequence of momentum dependent pairing interaction created by the spin waves. In this talk, we discuss recent progress in our understanding of unconventional superconductivity.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1079330
270 <5/11> Hybrid Josephson Junctions of Various Nanostructures 2011.05.04 101443
269 <5/18> Three magics to hold an atom without perturbation 2011.05.09 99357
268 <5/25> 나노켈빈 원자 기체의 보즈-아인슈타인 응집 2011.05.18 84989
267 <6/1> Electron phonon coupling effect in 4d transition metal oxide magnetism 2011.05.26 104736
266 <6/8> 액체금속 및 물의 과냉각 현상과 국소구조와의 관계 : 정전기 공중부양 기술 및 dynamic diamond anvil cell 2011.06.07 109194
265 2011학년도 2학기 콜로퀴움 일정 안내 2011.08.22 87867
264 <9/7> 과학과 예술 (Science and Arts) 2011.08.30 80951
263 <9/21> Electronic phase transition in low dimensional SrTiO3/(Sr1-x,Lax)TiO3 oxide superlattices 2011.09.09 83985
262 <10/5> Acoustic Metamaterials and Reversal of Sound 2011.09.26 92922
261 <10/12> Introduction to the Proton Engineering Frontier Project 2011.10.10 81356
260 <10/26> 빛으로 보는 세상 2011.10.17 79600
259 <11/2> Color Science for Reflective mode Optical Shutter 2011.10.27 157803
258 <11/9> Bosons in high Tc superconductors: an experimental survey 2011.10.31 109644
257 <11/16> Study of carrier transport and charging effects in organic devices 2011.11.10 112314
256 <11/23> How statistical physics contributes to Internet world: perspectives, methods and applications 2011.11.15 89248
255 <11/30> 기능성 산화물의 현황과 응용 2011.11.24 80156
254 <12/7> Optical Antennas 2011.11.30 88321
253 2012학년도 1학기 콜로퀴움 일정 안내 [5] 2012.02.29 85177
252 <3/14> 시공간 왜곡과 우주론(Spacetime warp and Cosmology) 2012.03.07 79046
251 <3/21> 우주가속팽창의 원인 규명 2012.03.15 90535