visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-11-23 16:00 
일시 Nov. 23(Thu), 4pm 
장소 E6-2(Natural Science B/D). 1st fl. #1323 
연사 Dr. Jaewon Choi (Diamond Light Source 
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 장소 제목
446 2016-12-09 13:30  #1323(E6-2. 1st fl.)  Entanglement area law in strongly-correlated systems
» 2023-11-23 16:00  E6-2(Natural Science B/D). 1st fl. #1323  Deciphering the Enigma of Quantum Materials by X-ray Scattering and Spectroscopy
444 2019-10-16 16:00  #1323 (E6-2, 1st fl.)  Emergent black holes and monopoles from quantum fields file
443 2022-07-14 13:30  E6 #1501 & Zoom  Electronic structure and anomalous transport properties of topological materials by first principle calculation
442 2016-11-24 16:00  #1323(E6-2. 1st fl.)  Harmonic oscillator physics with single atoms in a state-selective optical potential
441 2015-09-07 15:00  E6-2. 1st fl. #1318  Advanced Optical Materials and Devices at NRL
440 2021-05-14 16:00  Online seminar  Spatial and temporal separation of environmental dephasing sources from solid-state quantum emitters file
439 2016-04-12 16:00  E6-2. 1st fl. #1323  Confinement of Superconducting Vortices in Magnetic Force Microscopy
438 2017-04-28 14:30  E6-2. 1st fl. #1323  Hot electron generation at surfaces and its impact to catalysis and renewable energy conversion
437 2015-12-11 15:45  E6-2, #1323  Dynamical mean field theory studies on heavy fermion system
436 2023-10-19 11:00  E6-2 #1322  Emergent functionalities of iridium oxide films with different growth orientation file
435 2023-06-26 11:00  E6, Rm#1323  Quantum computing on magnetic racetracks with flying domain wall qubits
434 2019-04-19 11:00  #1323, E6-2  First-principles studies of semiconductors for solar cell applications file
433 2021-06-11 14:30  Online seminar  Engineering sound waves and vibrations in multi-mode nanomechanical systems file
432 2019-09-27 16:00  E6-2. 1st fl. #1323  0D/1D/2D/3D III-V materials grown by MBE for Optelectronics file
431 2018-03-16 14:30  E6-2. 1st fl. #1323  산화물 다층박막에서의 다양한 물리현상 file
430 2018-03-16 14:30  E6-2. 1st fl. #1323  산화물 다층박막에서의 다양한 물리현상 file
429 2016-12-8 16:00  #1323(E6-2. 1st fl.)  Dynamical Resonance between Two Optical Cavities via Optomechanical Oscillator
428 2023-05-22 13:00  E6-6 119  Design & Development of Electrochemical Biosensors for the Detection of T2DM Biomarkers
427 2017-03-02 16:00  #1323(E6-2. 1st fl.)  “Progress in the comparison of ARPES to DMFT for d and f strongly correlated electron systems”