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

 

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 1088675
516 <5/22> Vortex partition function and 3d dualities 2012.05.21 69529
515 <May. 11(Wed.) 4:30 PM> In-situ x-ray studies of functional oxides for energy systems 2016.05.23 69549
514 <7/18(Mon.) 14:00> GEANT4 Particle Physics Simulation Software: A Brief Overview From a User’s Perspective 2016.07.15 69734
513 <7/15(Fri.) 11:00> Observation of a field induced quantum spin liquid in α-RuCl3 2016.07.14 69825
512 <8/29(토)> 세미나 개최 안내 2015.09.01 69862
511 <9/7(금)> Kondo Effect in Chiral Orbital Bands 2012.08.31 69867
510 <May.1(Wed.)> Introduction of AMS Application 2019.04.24 69880
509 <6/9(화)> 세미나 개최 안내 2015.06.09 69905
508 <6/24(Fri.) 1:30pm>Emergent geometry from field theory: Wilson's renormalization group revisited 2016.06.20 70101
507 <Dec.30(Wed) 16:30> Some basics about the thermoelectricity; the semi-classical Boltzmann transport approach 2015.12.24 70126
506 <9/17(수)> Reshaping Micro/Nanophotonics by Programmable Soft-Matter 2014.09.15 70160
505 <12/10(수)> Magnetic Resonance Imaging: What is relevant to physics 2014.12.04 70192
504 <4/30> Physical principles and applications of ultrasound in diagnostics and therapy 2014.04.22 70258
503 <6/5> 물리학도가 증권가로 간 까닭은... 2013.05.29 70288
502 <11/5> Optical spectroscopic probe on the surface state in three dimensional topological insulators 2012.10.24 70578
501 <3/20> 빛 : 우주의 신비를 푸는 열쇠 2013.03.14 70608
500 <9/14> High temperature superconductivity and fluctuating stripe 2012.09.10 70978
499 2012학년도 2학기 콜로퀴움 일정 안내 2012.09.03 71126
498 <11/22> Spin polarization of photoelectrons from a topological insulator 2012.10.22 71299
497 <Nov.22(Wed.) 4:30 PM> Dark Side of the Universe 2017.11.15 71339