visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
장소 #1323(E6-2. 1st fl.) 
일시 Mar. 2nd (Thu), 4:00 p.m 
연사 Dr. Jonathan Denlinger, Lawrence Berkeley National Lab 

“Progress in the comparison of ARPES to DMFT for d and f strongly correlated electron systems”

 

 Dr. Jonathan Denlinger, Lawrence Berkeley National Lab

 Mar. 2nd (Thu), 4:00 p.m , #1323(E6-2. 1st fl.)

 

The comparison of angle-resolved photoemission (ARPES) to dynamical mean field theory (DMFT) electronic structure calculations is reviewed for three correlated electron systems of V2O3, CeCoIn5 and SmB6. The electronic structure of metallic phase V2O3, key to understanding its various metal-insulator transitions with temperature, doping and pressure, is revealed by ARPES to have a d-orbital band filling that is inconsistent with a 2007 DMFT model of correlation-enhanced orbital polarization, but is thematically consistent with more recent DMFT calculations stressing full charge-self-consistency.

   The Kondo lattice system CeCoIn5 is shown to exhibit itinerant f-electron participation in the localized-like 3D Fermi surface topology consistent with the low energy scale description of DMFT calculations, and with a temperature-dependence that extends far above the transport coherence temperature of T*~45K. 

   Finally, the temperature-dependent evolution of the bulk 4f electronic structure of mixed-valent SmB6 revealed by ARPES and DMFT identifies an important role in f-p hybridization assistance to the metal-insulator transition (MIT) beyond the minimal two-band models of f-d hybridization.  The current status of the topological insulator scenario for the SmB6 in-gap surface states is also reviewed.

 

Contact: Yeong Kwan Kim (Tel. 2516, yeongkwan@kaist.ac.kr)

번호 일시 장소 연사 제목
공지 2019/09/18 - 12/5  Seminar Room #1323  Prof. David Schuster and etc.  Fall 2019: Physics Seminar Serises
공지 2019/09/02 - 12/09  Seminar Room 1501  이호성 박사 (한국표준과학연구원) and etc.  Fall 2019: Physics Colloquium
224 May. 12 (Fri.), 01:30 PM  E6-2. 1st fl. #1323  Dr. Young Kuk Kim  Topological Dirac insulator
223 Jun. 2 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. Euyheon Hwang(황의헌)  Quasiparticle Interference and Fourier transform scanning tunneling spectroscopy in WTe2 (Weyl semimetal) file
222 Sep. 22 (Fri.), 01:00 PM  E6-2. 1st fl. #1323  Dr. EunSeong Kim / Department of Physics, KAIST  Superconductor-metal-insulator transition in thin Tantalum films file
221 Sep. 22 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. GilHo Lee / Department of Physics, POSTECH  Quantum Electronic Transport in Graphene Hybrid Nanostructures file
220 Sep. 22 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. GilHo Lee / Department of Physics, POSTECH  Unexpected Electron-Pairing in Integer Quantum Hall Effect file
219 Mar. 16 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. JinHee Kim  산화물 다층박막에서의 다양한 물리현상 file
218 Mar. 16 (Fri.), 04:0 PM  E6-2. 1st fl. #1323  Dr. YoungDuck Kim  Van der Waals Heterostructures from Quantum Transport to Ultrafast Optoelectronics file
217 Apr. 09 (Mon.), 11:00 AM  E6-2. 1st fl. #1323  Dr. Seung-Sup B. Lee  Doublon-holon origin of the subpeaks at the Hubbard band edges file
216 May. 11 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. Kun Woo Kim  Disordered Floquet topological insulators file
215 May. 11 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Nam Kim  암페어 단위 재정의와 단전자 펌프 소자 개발 file
214 May. 17 (Thu.), 01:30 PM  E6-2. 1st fl. #1323  Prof. Yong-Baek Kim University of Toronto  Quantum Spin Liquid in Kitaev Materials file
213 Jun. 01 (Fri.), 11:00 AM  E6-2. 1st fl. #1323  Dr. Seung Sae Hong  Topological phases in low-dimensional quantum materials file
212 Nov. 9 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. Pilkyung Moon  Moiré superlattices – from twisted bilayer graphene to quasicrystal file
211 Nov. 9 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Donghun Lee  Quantum sensing and imaging with diamond defect centers for nano-scale spin physics file
210 Dec. 7 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. Gyung Min Choi  Spin generation from heat and light in metals file
209 Dec. 7 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Joon Ho Jang  Novel probes of interacting electrons in 2D systems file
208 DEC. 11 (Tue), 04:00 PM  E6-2. 1st fl. #1323  Prof. Hiroshi Shinaoka  Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
207 DEC. 16~18 (Sun~Tue)  E6-2. 1st fl. #1323  Prof. Keisuke Totsuka  Lectures on 2d Conformal Field Theory file
206 Dec. 26 (Wed.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Isaac H. Kim  Brane-like defect in 3D toric code file
205 DEC. 27 (Thu), 04:00 PM  E6-2. 1st fl. #1323  Prof. Na Young Kim  Quantum Innovation (QuIN) Laboratory file