visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2024-01-03 11:00 
일시 Jan 3rd(Wed), 11:00 Am 
장소 E6-2, #1323 
연사 Sunghoon Kim (Ph.D. student, Cornell University) 
물리학과 구성원분들께, 
 
아래와 같이 세미나를 개최하고자 하오니, 관심있는 분들의 많은 참석 부탁드립니다.
 
Date: 11:00 Am, 3rd Jan (Wed)
 
Place: E6-2, #1323
 
Speaker: Sunghoon Kim (Ph.D. student, Cornell University)
 
Title: Interplay of Strong Correlations, Topology, and Disorder in 2D Quantum Matters 
 
Abstract: 

The physics of fractionalized quantum phases can be further enriched by band topology and spatial disorders. This talk will focus on our two recent works involving strongly correlated models with microscopic [1] and mesoscopic [2] spatial disorders, respectively.
In the first part of the talk, I will discuss the fate of 2D topological amorphous systems in the presence of strong on-site repulsive interactions [1]. I will consider an electronic two-orbital model with tunable topology in a 2D amorphous network. Using a parton-based mean-field approach, I will obtain the interacting phase diagram, featuring fractionalized amorphous phases with non-trivial topological properties.
In the second part, I will address non-trivial transport properties across a bandwidth-tuned metal-insulator transition in moiré TMD materials in the presence of mesoscale disorders [2]. To study the effect of disorders, I will construct a random resistor network model based on the theory of a continuous Mott transition at fixed filling of one electron per unit cell in the clean limit. The numerical results will be placed in the context of recent experiments.
[1] Sunghoon Kim, Adhip Agarwala, and Debanjan Chowdhury, Phys. Rev. Lett. 130, 026202 (2023)
[2] Sunghoon Kim, T. Senthil, and Debanjan Chowdhury, Phys. Rev. Lett. 130, 066301 (2023) 

 
번호 날짜 장소 제목
333 2021-06-22 17:00  Zoom webinar  Spintronics meets Quantum Materials file
332 2021-06-11 16:00  Online seminar  Pseudogap in surface-doped black phosphorus file
331 2021-06-11 14:30  Online seminar  Engineering sound waves and vibrations in multi-mode nanomechanical systems file
330 2021-06-08 10:00  Zoom webinar  Photonic crystal devices for sensing file
329 2021-05-27 16:00  온라인  찾아가는 물리연구 현장(유럽 입자물리학연구소 소개) file
328 2021-05-17 17:00  Zoom webinar  Spin current generation and detection in uniaxial antiferromagnets file
327 2021-05-14 16:00  Online seminar  Spatial and temporal separation of environmental dephasing sources from solid-state quantum emitters file
326 2021-05-14 14:30  Online seminar  Electrically tunable spin valve effect in vertical van-der-Waals magnetic tunnel junctions file
325 2021-04-19 19:00  Zoom webinar  Evidence of Electrical Switching in Antiferromagnets and Coherent Spin Pumping file
324 2021-04-09 10:00  Zoom webinar  Integrated Lithium Niobate Photonics file
323 2021-04-02 16:00  Online(Zoom)  Van der Waals heterostructures for orbital gating-based phototransistors and electronic spectroscopy
322 2021-04-02 14:30  Online(Zoom)  Quantum computing and entanglement generation using trapped ions and photons
321 2021-03-25 16:00  Online Seminar (Zoom)  Search for dark matter axion with Rydberg atoms file
320 2021-03-02 16:00  Online  Sensitive terahertz detection with graphene-based transistors file
319 2021-02-17 09:00  Online  석학 대중 강연 및 강의 시리즈 file
318 2021-02-15 17:00  Zoom  Magnetic Cluster Octupole Domain evolutation in chiral antiferromagnets file
317 2021-02-02 14:30  Zoom  Quantum- & Nano-Photonics 세미나(Integrated Nanophotonics with Metamaterials, Microcomb, and Atomic Systems) file
316 2021-01-28 18:00  Online Seminar  Quantum metamaterials: concept, theory, prototypes and possible applications file
315 2021-01-28 15:00  Zoom  Topological Transport of Deconfined Hedgehogs in Magnets file
314 2020-12-23 10:00  Online  Online workshop for Quantitative Phase Imaging file