visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2024-06-12 13:30 
일시 Jun 12th (Wed), 13:30pm 
장소 E6, #1501 
연사 Dr. Jun Ho Son (Cornell University) 
아래와 같이 세미나를 개최하고자 하오니, 관심있는 분들의 많은 참석 부탁드립니다.
 
Date: 13:30 pm, 12th Jun (Wed)
Place: E6, #1501
Speaker: Dr. Jun Ho Son (Cornell University)
Title: Competition between superconductivity and density waves in spin-degenerate and spin-orbit-coupled Bernal bilayer graphene
Abstract: 

Inspired by recent observations of the absence and presence of superconductivity in Bernal-stacked bilayer graphene (BBG) and BBG-WSe2 heterostructure, we investigate all possible competing instabilities driven by van Hove singularities (vHS) near the Fermi level in spin-degenerate and spin-split BBG. By performing a parquet renormalization group analysis in both systems, we identify an incommensurate intra-valley charge density wave (CDW) as the dominant instability in spin-degenerate BBG. Moreover, we find that lifting the spin degeneracy by the Ising spin-orbit coupling from the WSe2 monolayer or by applying an in-plane magnetic field restores superconductivity as the primary instability since intra-valley CDW is suppressed when the vHS are spin-polarized. We also discuss future experiments to confirm our proposed scenarios.

번호 날짜 장소 제목
288 2022-06-10 16:00  E6-2. 1st fl. #1323  Fe5GeTe2의 나선형 자성특성과 자기저항의 전류밀도 의존성 연구 file
287 2022-06-10 14:30  E6-2. 1st fl. #1323  Combinatorial strategy for condensed matter physics: study on rare earth hexaborides thin films file
286 2016-06-01 10:30  BK21 Conference Room (#1318, E6-2)  Welcome to Nature Photonics
285 2023-06-01 16:00  E6-2 #1323  (광학분야 세미나)Quantum sensing using a squeezed light from hot Rb vapor
284 2018-06-01 11:00  E6-2. 1st fl. #1323  Topological phases in low-dimensional quantum materials file
283 2021-06-08 10:00  Zoom webinar  Photonic crystal devices for sensing file
282 2024-06-05 10:00  E6, #2501  Moir\’e fractals in supermoir\’e structures
281 2024-06-03 11:00  E6, #3441  New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part1 file
280 2019-06-28 14:00  E6-2, #1322  1st Research-exchange meeting of computational material physics file
279 2019-06-24 11:00  E6-2, #1323  Topological photonic anomalies file
278 2021-06-22 17:00  Zoom webinar  Spintronics meets Quantum Materials file
277 2023-06-22 16:00  E6-2,1323  [High Energy Physics Seminar] The Branes Behind Generalized Symmetry Operators
276 2024-06-12 16:00  E6-2, #1323  New high Tc superconductivity and symmetric pseudogap metal in the bilayer nickelate La3Ni2O7-Part2 file
» 2024-06-12 13:30  E6, #1501  Competition between superconductivity and density waves in spin-degenerate and spin-orbit-coupled Bernal bilayer graphene
274 2016-06-01 16:00  #1323(E6-2 1st fl.)  Laboratory experiments relevant to mesospheric clouds, Saturn’s rings & astrophysical jets
273 2017-07-14 15:00  #1323 (E6-2. 1st fl.)  Chiral anomaly in disordered Weyl semimetals file
272 2018-07-09 14:00  #1323, E6-2  The principles of collective learning file
271 2019-07-08 14:00  E6, #1322  Ultrabroadband squeezed pulses and their relation to relativity file
270 2024-07-03 16:00  E6-2 #2502  [High Energy Theory Seminar] Holographic duals of Higgsed Dpb(BCD)
269 2019-07-31 16:00  E6-2, #1323  Features of ballistic superconducting graphene file