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
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
212 2019-02-25 16:00    Spring 2019: Physics Colloquium file
211 2019-02-21 16:00    B-meson charged current anomalies - Theoretical status file
210 2019-01-23 16:00    Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
209 2019-01-09 16:00    Molecular Mott state in the deficient spinel GaV4S8 file
208 2019-01-07 15:00    Many-Body Invariants for Multipoles in Higher-Order Topological Insulators file
207 2018-12-27 16:00    Quantum Innovation (QuIN) Laboratory file
206 2018-12-26 16:00    Informal Workshop on Topology and Correlation file
205 2018-12-26 16:00    Brane-like defect in 3D toric code file
204 2018-12-16 16:00    Lectures on 2d Conformal Field Theory file
203 2018-12-11 16:00    Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
202 2018-12-07 16:00    Novel probes of interacting electrons in 2D systems file
201 2018-12-07 14:30    Spin generation from heat and light in metals file
200 2018-11-29 16:00    양자 칸델라 실현을 위한 단일 광자 발생장치 개발 file
199 2018-11-23 15:00    Entanglement string and Spin Liquid with Holographic duality file
198 2018-11-22 15:00    Experimental and Computational Study on Physical Properties based on Granular System file
197 2018-11-21 15:00    Engineering topological quantum physics at the atomic scale file
196 2018-11-09 16:00    Quantum sensing and imaging with diamond defect centers for nano-scale spin physics file
195 2018-11-09 14:30    Moiré superlattices – from twisted bilayer graphene to quasicrystal file
194 2018-11-08 16:00    Conformality lost file
193 2018-11-01 16:00    Direct holography from a single snapshot file