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
367 2019-07-30 16:00  #1323, E6-2  Dirac fermions and flat bands in correlated kagome metals file
366 2023-07-11 11:00  E6-2, #1323  Ordered phases, non-Fermi liquid, and quantum criticality driven by entanglement between multipoles and conduction electrons
365 2017-04-28 16:00  #1323 (E6-2. 1st fl.)  Carbon nanotubes coupled to superconducting impedance matching circuits
364 2016-09-29 16:00  E6-2. #2501(2nd fl.)  Exploring the phase diagram of BaBiO3: epic voyage of just another bad trip?
363 2019-06-12 15:00  Rm# 1323, E6-2  The relation between free and interacting fermionic SPT phases file
362 2022-10-06 13:00  E6 #1323  Counting States with Global Symmetry
361 2022-08-12 10:00  E6-1 #1323  Twisted Bilayer Magnets file
360 2022-08-12 10:00  E6-1 #1323  Twisted Bilayer Magnets file
359 2016-04-26 16:00  #1323(1st Floor. E6-2)  Transport spectroscopy for electronic bands in carbon-based nanomaterials with weak-bond contacts
358 2018-05-11 16:00  E6-2. 1st fl. #1323  암페어 단위 재정의와 단전자 펌프 소자 개발 file
357 2016-06-01 10:30  BK21 Conference Room (#1318, E6-2)  Welcome to Nature Photonics
356 2018-07-02 15:00  Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus  High Precision Magnetic Field Measurement for the Muon g-2 Experiment file
355 2015-10-16 15:00  E6-2, 5th fl. #5318  High Magnetic Fields to Probe the sub-eV range of Particle/Astroparticle Physics - From the OSQAR experiments at CERN up to new perspectives at LNCMI-Grenoble
354 2018-11-09 14:30  E6-2. 1st fl. #1323  Moiré superlattices – from twisted bilayer graphene to quasicrystal file
353 2022-03-29 10:00  E6 #1501/zoom, E6 #2502/zoom  Non-reciprocal phase transitions file
352 2022-03-31 10:00  E6 #1501/zoom  Weiss fields for Quantum Spin Dynamics file
351 2020-10-15 17:00  https://bit.ly/3ndIiJn  Time crystals, quasicrystals, and time crystal dynamics in the superfluid universe file
350 2023-05-03 16:00  E6-2, #2502  Probing microscopic origins of axions by the chiral magnetic effect
349 2022-11-09 16:00  E6-2. 1st fl. #1323  Radio Astronomy, Radio Interferometry, and Multi-wavelength Studies on Relativistic Jets
348 2017-06-02 16:00  #1323 (E6-2. 1st fl.)  Maxwell's demon in quantum wonderland file