visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-07-14 13:30 
연사  
장소 E6 #1501 & Zoom 

7/14(목) 물리학과 문은국 교수 연구실에서 개최하는 세미나를 안내 드립니다. 

 

- Title: Electronic structure and anomalous transport properties of topological materials by first principle calculation
- Speaker: Dr. Jahyun Koo(Institute of Natural Science, KAIST)
-  Date: Jul. 14th (THU), 13:30, E6 #1501

https://us02web.zoom.us/j/87068327099?pwd=SXlyZTRkSnhEeW1GTlFjaW45SW1nUT09

회의 ID: 870 6832 7099

암호: 977538

 
Abstract: 

 

The density functional theory(DFT) is one of the most efficient ways of predicting the properties of materials. The topological materials exhibit unusual surface states and anomalous transport phenomena. In this talk, I will introduce several examples of DFT calculation, and how we connect the theoretical result to interesting experimental results. In the first part of the talk, I will introduce a calculation about the electronic structure and related properties of anomalous electrical Hall response, in the Co2MnAl. How to create or remove nodal rings and Weyl points freely in a ferromagnetic topological semimetal by rotating the magnetization direction via a weak magnetic field. Second, I will present a study about the the Kagome lattice noncollinear antiferromagnetic Mn3Ge(Sn). We find that the anomalous Lorenz ratio remains close to the Sommerfeld value at zero temperature. Widemann-Franz's law linking the magnitude of the anomalous thermal and anomalous electrical Hall effects is valid. Following the semiclassical approach, the temperature dependence of anomalous transport properties is determined by the electronic structure and Berry curvature details of the 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)
214 2022-09-21 16:00    Materials and Device Nanofabrication of Optical Metasurfaces file
213 2022-09-22 11:00    2022 가을학기 응집물리 및 광학 세미나 전체 일정 file
212 2022-09-22 16:00    (광학분야 세미나) Quasi-particle-like optical vortices in magnetic materials
211 2022-09-23 11:00    [Update 세미나 영상] (응집물리 세미나) Steady Floquet-Andreev states in graphene Josephson junctions file
210 2022-09-29 16:00    (광학분야 세미나) Ultrafast THz Field-Induced Nonlinear Optics
209 2022-09-30 14:30    Putting a spin on the Josephson effect file
208 2022-09-30 16:00    Spin-orbit torque-based spintronic devices file
207 2022-10-04 16:00    Distinguishing 6d (1, 0) SCFTs
206 2022-10-06 13:00    Counting States with Global Symmetry
205 2022-10-07 11:00    [Update 세미나 영상] (응집물리 세미나) Competing orders in a vanadium-based kagome metal monolayer file
204 2022-10-13 16:00    (광학분야 세미나) Ultrafast Optics for Ultra-Precision Metrology and Realization of Flexible/Stretchable Laser-Induced-Graphene Electronics
203 2022-10-24 16:00    Physics Colloquim(Fall 2022) file
202 2022-10-26 10:00    Replica Higher-Order Topology of Hofstadter Butterflies in Twisted Bilayer Graphene
201 2022-10-27 16:00    (광학분야 세미나) Cavity optomechanical systems for quantum transduction
200 2022-10-28 11:00    [Update 세미나영상] (응집물리 세미나) Machine-Learning-Guided Prediction models and Materials discovery for high Tc cuprates file
199 2022-11-03 13:00    [High-Energy Theory Seminar] Supersymmetric observables via Fermi-gas method
198 2022-11-03 16:00    (광학분야 세미나) Single-photon emission from low-dimensional materials
197 2022-11-04 16:30    초세대 협업연구실 Quantum- & Nano-Photonics_Multifunctional neural probes with integrated nanophotonics file
196 2022-11-09 16:00    Radio Astronomy, Radio Interferometry, and Multi-wavelength Studies on Relativistic Jets
195 2022-11-10 16:00    Probing the Origin of Cosmic Infrared Background and Future Prospects with SPHEREx