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 1078481
269 <4/9> 중이온가속기 KoRIA 구축 계획 2010.04.02 93007
268 <11/27> Introduction to Terahertz and Infrared Spectroscopy 2013.11.21 92952
267 <10/5> Acoustic Metamaterials and Reversal of Sound 2011.09.26 92814
266 <4/11> 방사광 연 X선을 이용한 미시적 물성 연구 2008.04.07 92457
265 <6/5>Magnetism and Superconductivity 2009.05.27 92281
264 <5/12> An Infrared View of the Universe 2006.05.09 92172
263 <9/19> Novel mechanical degree of freedom at nanoscales 2012.09.13 91473
262 <Mar.27(Wed.)> Ultrafast Movie Maker for Photo-induced Dynamics: Ultrafast Electron Microscope 2019.03.20 91381
261 <5/29> Study on the electronic interactions in solids under high magnetic fields 2013.05.23 91143
260 <Sep. 9(Wed.) 4:30 PM> Electronic structures of strongly-correlated systems 2015.09.03 90821
259 <5/7> Contribution of Internal and Surface Traps to Blinking Statistics in Colloidal Quantum Dots 2014.04.30 90724
258 <3/21> 우주가속팽창의 원인 규명 2012.03.15 90500
257 <11/23> Hot/Dense QCD 2007.11.16 90421
256 <4/16>같은 곳을 바라보는 다른 시선 2010.04.09 90062
255 2015학년도 2학기 콜로퀴움 일정 2015.08.06 90013
254 <6/9> Status and Prospects of Big Science in Korea 2006.06.05 89634
253 <Oct.30(Wed.)> 왼손과 오른손, 기본 입자와 끈 2019.10.24 89598
252 <3/12> Where, when and how atomic nuclei were cooked in universe? 2014.03.07 89524
251 <4/3>Enhanced emission rate from a single quantum well using surface plasmon 2009.03.31 89507
250 <May.9(Wed.) 4:30 PM> "How gold was produced in the universe?" 2018.05.02 89502