visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-11-23 16:00 
연사  
장소 E6-2(Natural Science B/D). 1st fl. #1323 
최재원 박사의 세미나를 아래와 같이 안내드립니다.
구성원 여러분의 많은 참여 부탁드립니다. 
 

Title: Deciphering the Enigma of Quantum Materials by X-ray Scattering and Spectroscopy

Speaker: Dr. Jaewon Choi (Diamond Light Source)
Date: Nov. 23(Thu), 4pm

Place : E6-2(Natural Science B/D). 1st fl. #1323

 

[Zoom 회의 참가]

주제: 최재원 박사 세미나
 
회의 ID: 884 0859 3807
 
 
Abstract:  

The advent of modern synchrotron radiation facilities provides new powerful experimental tools to study quantum-mechanical phenomena that emerge in condensed matter. Especially, the rapid development of various x-ray scattering and spectroscopy techniques allows us to unveil the hidden clues to longstanding puzzles in strongly-correlated materials where the complex interplay of charge, spin, orbital, and lattice degree of freedom often leads to counter-intuitive phenomena. In this talk, I will introduce our recent attempts to decipher the enigma of correlated quantum materials. First, the omnipresence of charge density waves (CDWs) across almost all cuprate material families underpins a common organizing principle. However, a longstanding debate of whether its spatial symmetry is a unidirectional stripe or bidirectional checkerboard remains unresolved. We take two different strategies to unequivocally reveal the unidirectional nature of CDWs in cuprate superconductors [1-3]. Second, the recent realization of the superconducting phase in infinite-layer nickelate materials provides an excellent platform to find the essential ingredient for high-temperature superconductivity by comparing it to cuprates. We established an analogy between cuprates and nickelates superconductors by observing collective excitations such as CDW or low-energy magnon [4-6]. Lastly, our recent efforts to applying x-ray scattering and spectroscopy techniques to a broader range of quantum materials, such as topological semimetals and battery-related materials will be briefly introduced. These examples show great potential of x-ray scattering and spectroscopy to provide new insights for fundamental understanding of quantum materials.

번호 날짜 연사 제목
510 2023-03-02 11:00    Probing Anomalies of Non-Invertible Symmetries with Symmetry TFTs
509 2020-07-02 16:00    An irreversible qubit-photon coupling for the detection of itinerant microwave photons file
508 2015-08-04 11:00    Propagation of ultrasound through two- and three-dimensional strongly scattering media
507 2016-07-07 14:00    Let there be topological superconductors
506 2017-09-22 13:00    Superconductor-metal-insulator transition in thin Tantalum films file
505 2017-06-02 14:30    Quasiparticle Interference and Fourier transform scanning tunneling spectroscopy in WTe2 (Weyl semimetal) file
504 2016-05-24 16:00    Electronic and magnetic properties of 2D transition-metal thiophosphates and tunability of magnetic order with carrier density
503 2023-06-14 16:00    [CAPP seminar] EMC at CERN file
502 2023-06-15 16:00    [CAPP Seminar] Cryogenic electronics for ion traps file
501 2016-04-04 09:30    Radio frequency engineering
500 2016-11-1 10:30    Time scale dependent dynamics in InAs/InP quantum dot gain media
499 2018-10-25 16:00    Abelian and non-Abelian dark photons file
498 2024-08-14 11:00    Pair Density Waves and Supercurrent Diode Effect in Altermagnets
497 2017-09-22 16:00    Unexpected Electron-Pairing in Integer Quantum Hall Effect file
496 2017-09-22 14:30    Quantum Electronic Transport in Graphene Hybrid Nanostructures file
495 2024-05-14 16:00    [High Energy Theory Seminar] Minimal Production of Prompt Gravitational Waves during Reheating.
494 2018-12-07 14:30    Spin generation from heat and light in metals file
493 2015-09-14 14:00    Ultrafast X-ray Studies on Dynamics Matter in Extreme Conditions
492 2016-09-22 15:30    Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
491 2016-09-22 15:30    Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model