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
379 2015-09-15 16:00  E6, 1501  Physics Colloquium : 2014 Fall file
378 2014-03-10 16:00  E6, 1501  Physics Colloquium : 2014 Spring file
377 2013-09-09 16:00  E6, 1501  Physics Colloquium : 2013 Fall
376 2013-03-11 16:00  E6, 1501  Physics Colloquium : 2013 Spring
375 2012-04-02 16:00  E6, 1501  A new route to ferroelectricity in magnetic spinels: a case of Co2MnO4
374 2012-02-13 16:00  E6, 1501  Physics Colloquium : 2012 Spring
373 2011-09-03 16:00  E6, 1501  Physics Colloquium : 2011 Fall file
372 2011-05-16 16:00  E6, 1501  Photonics with surface plasmon polaritons
371 2010-02-14 16:00  E6, 1501  Physics Colloquium - 2011 Spring file
370 2010-09-06 16:00  E6, 1501  Physics Colloquium : 2010 Fall file
369 2010-02-08 16:00  E6, 1501  Physics Ciolloquium : 2010 Spring file
368 2009-10-21 16:00  E6, 1501  Interdimensional Universality of Dynamic Interfaces
367 2009-09-07 16:00  E6, 1501  Physics Colloquium : 2009 Fall file
366 2009-02-23 16:00  E6, 1501  Physics Colloquium : 2009 Spring file
365 2023-06-26 11:00  E6, Rm#1323  Quantum computing on magnetic racetracks with flying domain wall qubits
364 2023-08-24 11:00  E6, Rm#1323  Advancing magnonic metamaterials: spin waves in nanomagnetic arrays
363 2023-09-27 16:00  E6, Rm#2501  Chiral Magnets: Domain-Wall Skyrmions and String Theory Realization
362 2014-12-22 14:00  E6, Rm1319  Dynamics of molecular motors: Power stroke vs Brownian ratchet file
361 2022-04-08 11:00  E6-1 #1323  (응집물리 세미나) Flat-surface-assisted physical phenomena occurring in single crystal metal thin film file
360 2022-03-25 11:00  E6-1 #1323  (응집물리 세미나) Hund's metallicity in ruthenate systems file