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 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1090729
178 콜로퀴움 게시판입니다. 2011.02.28 80320
177 <5/12(월)> Nanoscale probing of electrochemical phenomena and ionic dynamics by scanning probe microscopy 2014.05.07 101812
176 <4/21(월) 오후 2시> Optical properties of iron-based conductors and superconductors 2014.04.15 78312
» <4/18(금)> 양자물질초전도체창의연구소 초청 세미나 2014.04.15 189140
174 <3/28> A global financial settlement network and its cascading effects 2014.03.26 61452
173 <1/2> MYRRHA Project (EU 4세대 원전 사업) 2013.12.30 63832
172 <12/30> Correlation between Raman scattering and conductance in a molecular junction 2013.12.23 72660
171 <12/26> Emergent Physics in 3D Correlated Topological Semimetals file 2013.12.20 157616
170 <12/30> Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena 2013.12.16 136025
169 <11/11> Revealing magnetism of nanoislands with quantitative insights into spin-polarized scanning tunneling spectroscopy 2013.11.05 101814
168 <11/5(화)> 특별세미나 개최 안내 2013.11.01 234676
167 <11/4 오후 3:30> Surface impurity induced self energy in bulk on a topological insulator 2013.10.23 97223
166 <11/4 오전 10:30> Quantum transport through topological-metal strip 2013.10.23 92364
165 <10/28> Magneto-electric response of multiferroic chiral magnets 2013.10.21 76436
164 <8/21(수)> 고온 초전도 특별세미나 2013.08.21 79691
163 <8/20> Radioprotection effect and anti-tumor immunity by TCM-EF in mice 2013.08.21 192936
162 <7/25(목) 오전11시> 물리학과 특별세미나 개최 안내 2013.07.19 142702
161 <6/25(화)>물리학과 특별세미나 개최 안내 2013.06.24 165482
160 <4/30(화)> DC (DNA Curtains) and AC (Actin Curtains) in single-molecule biophysics 2013.04.11 128664
159 <3/27> The Born series for S-wave spin-quartet neutron-deuteron scattering at small cutoff values. 2013.03.25 83481