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 1091371
182 <4/6> Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment 2012.04.04 76780
181 <4/23> BK 석학초청 특별강연 - Connections between Stellar Evolution and Nuclear Physics 2012.04.16 79037
180 <4/18> Action-angle variables for the near-horizon extreme black hole particle dynamics 2012.04.17 119850
179 <4/24> How to introduce the monopole in quantum mechanics? 2012.04.23 78166
178 <5/1> Supersymmetry Breaking in Chern-Simons-matter Theories 2012.04.30 74375
177 <5/3> APOLLO Program: Understanding Neutron-Rich Nuclei for r-Process Nucleosynthesis 2012.05.03 99921
176 <5/8> A brief introduction to holographic entanglement entropy 2012.05.07 82903
175 <5/9> Gravity dual of (Non-)Fermi Liquids from Entanglement Entropy 2012.05.07 82294
174 <5/16> superconformal index with line operators and domain walls 2012.05.14 100535
173 <6/5> BK 석학초청 특별강연 - How Well Does High Field Specific Heat Probe the Nodal Nature of the Multi- 2012.05.14 102269
172 <5/22> Vortex partition function and 3d dualities 2012.05.21 69617
171 <6/5> Bilinear Wess-Zumino term for open AdS superstring: covariant description of D-branes 2012.06.04 108739
170 <6/19> 초전도 특별세미나 2012.06.11 101387
169 <6/19> Kohn's theorem and non-relativistic symmetry 2012.06.15 92898
168 <6/21> Nuclear Astrophysics in Effective Field Theories 2012.06.20 92683
167 <7월27일>Correlated topological phases in 3D complex oxides via Green's functions 2012.07.27 90747
166 <8/7> Scotch tape and spectroscopy: probing and manipulating the surface of a topological insulator 2012.07.27 94484
165 <9/7(금)> Kondo Effect in Chiral Orbital Bands 2012.08.31 69995
164 <9/7> On Dark Matter and its indirect detection with box-shaped gamma-rays 2012.09.05 76129
163 <9/14> High temperature superconductivity and fluctuating stripe 2012.09.10 105623