korean english


Home > 게시판 > 세미나

양자물질초전도체창의연구소에서 아래와 같이 초청 세미나를 개최하오니 많이 참석해 주시기 바랍니다.


아 래


제목: Kondo screening near the Mott transition and the signatures of Nozieres’ exhaustion


연사: 이  현  정 박사님 (KIAS)


일시: 2014. 4. 18(금) 오전 11:00  


장소: 삼성학술정보관 7층 Creative learning room


초록: How can a few electrons screen many magnetic impurities, the so called “exhaustion problem” is an interesting issue which is supposed to control the physics of heavy fermions in rare earths compounds. It also enters indirectly in the issue of Mott metal insulator transitions, where few charge carriers in a narrow Kondo resonance are acting to screen a large number of localized spins filled in a broad Hubbard band.
In order to explore the exhaustion problem in doped Mott insulators, we investigate the Mott transition of the doped Hubbard model within the dynamical mean-field approach, where the numerical renormalization-group method is used as an impurity-solver. Approaching the critical point from the metallic side, we find characteristic signatures of the Nozieres’ exhaustion, including a strongly reduced lattice Kondo scale and a significant suppression of the density of states beside the resonance peak. The fact that similar features are also observed in the low-energy scale of the periodic Anderson model suggests that the physics of Kondo lattices can shed light on the Mott metal-insulator transition.


번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1089813
536 <6/25(화)>물리학과 특별세미나 개최 안내 2013.06.24 164855
535 <7/25(목) 오전11시> 물리학과 특별세미나 개최 안내 2013.07.19 142397
534 <8/20> Radioprotection effect and anti-tumor immunity by TCM-EF in mice 2013.08.21 191860
533 <8/21(수)> 고온 초전도 특별세미나 2013.08.21 79592
532 <10/28> Magneto-electric response of multiferroic chiral magnets 2013.10.21 76333
531 <11/4 오전 10:30> Quantum transport through topological-metal strip 2013.10.23 92175
530 <11/4 오후 3:30> Surface impurity induced self energy in bulk on a topological insulator 2013.10.23 96787
529 <11/5(화)> 특별세미나 개최 안내 2013.11.01 234461
528 <11/11> Revealing magnetism of nanoislands with quantitative insights into spin-polarized scanning tunneling spectroscopy 2013.11.05 101645
527 <12/30> Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena 2013.12.16 135658
526 <12/26> Emergent Physics in 3D Correlated Topological Semimetals file 2013.12.20 157258
525 <12/30> Correlation between Raman scattering and conductance in a molecular junction 2013.12.23 72518
524 <1/2> MYRRHA Project (EU 4세대 원전 사업) 2013.12.30 63803
523 <3/28> A global financial settlement network and its cascading effects 2014.03.26 61421
» <4/18(금)> 양자물질초전도체창의연구소 초청 세미나 2014.04.15 188877
521 <4/21(월) 오후 2시> Optical properties of iron-based conductors and superconductors 2014.04.15 78208
520 <5/12(월)> Nanoscale probing of electrochemical phenomena and ionic dynamics by scanning probe microscopy 2014.05.07 101522
519 콜로퀴움 게시판입니다. 2011.02.28 80284
518 콜로퀴움입니다. 2005.12.29 82001
517 콜로퀴움 강연 일정표 2006.02.21 90536