visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2021-11-02 16:00 
일시 Nov. 2(Tue) 04:00pm 
장소 자연과학동(E6-2) #1323 
연사 Sangjin Lee(IBS-CALDES) 
Title: Metrology of Band Topology via Resonant Inelastic X-ray Scattering
speaker: Sangjin Lee(IBS-CALDES)
Date: 4pm, 2nd Nov E6 #1323
 
abstract
Topology is a central notion in the classification of band insulators and characterization of entangled many-body quantum states. In some cases, it manifests as quantized observables such as quantum Hall conductance. However, being inherently a global property depending on the entirety of the system, its direct measurement has remained elusive to local experimental probes in many cases. Here, we demonstrate that some topological band indices can be probed by resonant inelastic x-ray scattering. Specically, for the paradigmatic Su-Schrieer-Heeger and quadrupolar insulator models, we show that non-trivial band topology leads to distinct scattering intensity at particular momentum and energy. Our result establishes an incisive bulk probe for the measurement of band topology.
 
번호 날짜 장소 제목
공지 2022-11-25 11:00  E6-2 #1323  [Update 세미나영상](응집물리 세미나) DMFT+ NRG: From models to real materials, from local to nonlocal correlations
368 2018-11-21 15:00  #1323, E6-2  Engineering topological quantum physics at the atomic scale file
367 2018-11-08 16:00  #1323, E6-2  Conformality lost file
366 2018-11-01 16:00  #1323, E6-2  Direct holography from a single snapshot file
365 2018-10-26 16:00  #1323, E6-2  Coexisting triple-point and nodal-line topological magnons and thermal Hall effect in pyrochlore iridates file
364 2018-10-25 16:00  #1323, E6-2  Abelian and non-Abelian dark photons file
363 2018-10-18 16:00  #1323, E6-2  Applications of nonlinear optics for condensed matter researches file
362 2018-10-19 10:00  #1323, E6-2  Energy conversion processes during magnetic reconnection in a laboratory plasma file
361 2018-10-18 10:00  #1323, E6-2  Understanding membrane protein folding using single-molecule force techniques file
360 2018-10-16 10:00  #1323, E6-2  Capturing protein cluster dynamics and gene expression output in live cells file
359 2018-10-15 16:00  #1323, E6-2  Universal properties of macroscopic current-carrying systems file
358 2018-10-11 16:00  #1323, E6-2  Dirac electrons in a graphene quasicrystal file
357 2018-10-04 16:00  #1323, E6-2  Engineering light absorption in an ultrathin semiconductor metafilm file
356 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
355 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
354 2018-09-05 16:00  #1323, E6-2  Shining a light on fractional excitations file
353 2018-07-09 14:00  #1323, E6-2  The principles of collective learning file
352 2018-07-27 13:30  #1323, E6-2  Magnetic reversal of artificial spin ice file
351 2018-07-27 13:30  #1323, E6-2  Magnetic reversal of artificial spin ice file
350 2018-06-22 16:00  #1323, E6-2  Tuning functional properties of BiFeO3 films using strain and growth chemistry file
349 2018-06-22 16:00  #1323, E6-2  Tuning functional properties of BiFeO3 films using strain and growth chemistry file