visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-04-13 10:30 
일시 Apr. 13(Wed.) 10:30Am 
장소 E6 #1323/zoom 
연사 Mingu Kang (Max Planck POSTECH Korea Research Initiative) 
2022년 4월 13일(수) 오전 10시 30분 세미나 안내 
 
- Title: Harnessing topology and correlations from singularities in 3d-kagome metals
- speaker: Mingu Kang (Max Planck POSTECH Korea Research Initiative)
- location: E6 #1323/zoom
 
- 회의 ID: 871 6131 6372
- 암호: 607224
 
- abstract
    Kagome lattice is a network of corner-sharing triangles that has been studied extensively as a platform for novel quantum magnetic states. In metallic case, the symmetry of kagome lattice protects three singularities in its band structure including Dirac fermions at the Brillouin zone corner Kvan Hove singularity at the zone edge M, and flat band across the whole Brillouin zone. If properly combined with spin-orbit coupling, magnetism, and strong electronic interactions, these unique singularities in the kagome lattice represent a rich potential to realize nontrivial topological and correlated many-body ground states including Chern insulators, magnetic Weyl semimetals, fractional quantum Hall effect, chiral density waves, and unconventional superconductivity.
    In this talk, I will review the recent material realizations of such exotic electronic states in a series of 3d-transition metal-based kagome compounds. These include Dirac fermion-induced Chern insulating phase and intrinsic anomalous Hall conductivity in Fe3Sn2flat band-induced Stoner magnetism, nontrivial Z2 topology, and non-Fermi liquid behavior in (Fe,Co)Sn and Ni3In, and van Hove singularity-induced charge order in (K,Rb,Cs)V3Sb5. These successful realizations highlight 3d-kagome metals as a promising opportunity to engineer novel emergent phases of matter at the crossroad between strongly correlated physics and electronic topology.
 
번호 날짜 장소 제목
442 2020-01-17 16:00  #1323, E6-2  Symmetry Breaking and Topology in Superfluid 3He file
441 2019-06-28 13:30  #1323, E6-2  Magnetic domains and domain wall conduction in pyrochlore iridate thin films and heterostructures file
440 2019-05-02 16:00  #1323, E6-2  Anomalous optical properties of halide perovskites file
439 2019-09-18 16:00  Seminar Room #1323  Fall 2019: Physics Seminar Serises file
438 2016-10-17 11:00  #1323,(E6-2, 1st fl.)  IMS and examples of the studies on optoelectronic materials
437 2019-09-02 16:00  Seminar Room 1501  Fall 2019: Physics Colloquium file
436 2016-04-28 15:00  #2501(E6-2. 2nd fl.)  Lattice/Spin/Charge Coupling in 5d Pyrochlore Cd2Os2O7
435 2019-12-13 13:00  #2501, E6-2  Computational Material Designs: Current Status and Future Directions file
434 2018-04-06 10:00  #2502, E6  Entanglement and thermalization in many-body systems: recent progress file
433 2019-06-27 14:00  #2502, E6-2  Gapless Kitaev Spin Liquid to Loop and String Gases file
432 2019-09-10 15:00  #2502, E6-2  (2+1) D Duality Web from 3D Euclidean Lattice file
431 2019-11-20 16:00  #5302, E6-2  Correlation between superconducting transition temperature and critical current density in irradiated iron-based superconductors file
430 2019-02-21 16:00  #5313, E6-2  B-meson charged current anomalies - Theoretical status file
429 2017-11-08 13:00  #5318 (E6-2. 5th fl.)  “Emergent exotic quasiparticles in quantum spin liquids” file
428 2016-11-18 10:30  #5318(5th fl.)  Non-equilibrium many-body spin dynamics in diamond
427 2017-08-31 14:00  #5318(E6-2. 5th fl.)  “Berry phase and nonlinear response: photocurrent in noncentrosymmetric insulators and Weyl semimetals” file
426 2019-12-27 15:00  #5318, E6-2  The superconducting order parameter puzzle of Sr2RuO4 file
425 2019-05-21 16:00  #5318, E6-2  Classification of flat bands according to the band-crossing singularity of Bloch wave functions file
424 2018-02-12 15:00  #C303, (Creation Hall 3F, KAIST Munji Campus)  The recent result of XMASS Experiment
423 2020-10-15 16:00  (https://kaist.zoom.us/j/93997220310)  Towards resource-efficient and fault-tolerant quantum computation with nonclassical light