logo

korean english

게시판

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 2021학년도 2학기 콜로퀴움 일정 2021.07.01 36537
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 754909
437 <10/29(수)> 창조경제와 과학기술혁신시스템 2014.10.16 54856
436 <Nov. 11(Wed.) 4:30 PM> 그래핀 산업의 현황과 전망 2015.11.09 54860
435 <10/15(수)> 첨단 과학 기술의 세계와 물리학의 위상 2014.10.08 54899
434 <5/26(화)> 세미나 개최 안내 2015.05.27 54935
433 <Sep. 7(Wed.) 4:30 PM>Manipulating spins in topological insulators 2016.09.02 55050
432 <Nov. 8(Wed.) 4:30 PM> 연성물질 기반 위상학적 결함구조의 상전이와 응 2017.11.01 55099
431 <9/24(수)> Design Principles of Cellular Networks 2014.09.18 55303
430 <Oct. 7(Wed.) 4:30 PM> Observing Ultra High Energy Cosmic Rays with your Smartphone 2015.10.02 55311
429 <11/4 오전 10:30> Quantum transport through topological-metal strip 2013.10.23 55415
428 <11/4 오후 3:30> Surface impurity induced self energy in bulk on a topological insulator 2013.10.23 55467
427 <5/12(월)> Nanoscale probing of electrochemical phenomena and ionic dynamics by scanning probe microscopy 2014.05.07 55579
426 <10/8(수> Astrophysical probes of Dark Matter, the case of the Milky Way 2014.10.01 55617
425 <3/13(금) pm1:00> 초청세미나 개최 안내 2015.03.09 55898
424 <4/21(화)> 특별초청세미나 개최 안내 2015.04.03 55960
423 <9/17(수)> Reshaping Micro/Nanophotonics by Programmable Soft-Matter 2014.09.15 56011
422 <5/20(수) 오후4:30분> Nonequilibrium statistical physics for Brownian heat engine 2015.05.14 56085
421 <3/18(수) 오후4:30분> 시장리스크 관리(Market Risk Management) 소개 2015.03.11 56313
420 <2/7>Emergent p-wave Kondo Coupling in Multi-Orbital Bands with Mirror Symmetry Breaking 2013.02.06 56333
419 <11/5(수)> 안전한 사회를 위한 과학의 역할 2014.11.01 56344
418 <4/7(화)> 특별초청세미나 개최 안내 2015.04.01 56352