• HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-07-14 13:30 
일시 Jul. 14th (THU), 13:30 
장소 E6 #1501 & Zoom 
연사 Dr. Jahyun Koo(Institute of Natural Science, KAIST) 

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

회의 ID: 870 6832 7099

암호: 977538



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 장소 제목
185 2022-01-18 14:00  KI bldg. 5th fl. Room B501 & Zoom  Data-driven interrogation of biological dynamics: from subcellular interactions to neuronal networks in vivo file
184 2022-01-25 15:00  E6 #1501/online  Emulating twisted double bilayer graphene with a multiorbital optical lattice file
183 2022-01-26 13:00  E6 #1501  An Introduction to Cohomology groups file
182 2022-02-28 16:00  E6, #1501  Spin-based training of optical microscopes
181 2022-03-07 16:00  E6, #1501  Climate Physics and Modelling(우리말강의)
180 2022-03-14 16:00  E6, #1501  Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference
179 2022-03-18 11:00  Online seminar  (응집물리 세미나) Illuminating exotic states of matter: Raman spectroscopy as an experimental tool to characterize quantum spin liquids file
178 2022-03-21 16:00  E6, #1501  Multi-wavelength Studies on Relativistic Jets from Gamma-ray Bright Active Galactic Nuclei
177 2022-03-25 11:00  E6-1 #1323  (응집물리 세미나) Hund's metallicity in ruthenate systems file
176 2022-03-28 16:00  E6, #1501  Ultimate-density atomic semiconductor via flat bands
175 2022-03-29 10:00  E6 #1501/zoom, E6 #2502/zoom  Non-reciprocal phase transitions file
174 2022-03-31 10:00  E6 #1501/zoom  Weiss fields for Quantum Spin Dynamics file
173 2022-03-31 16:00  online  (광학분야 특별세미나)Ultrafast time-resolved spectroscopy in topological materials
172 2022-04-01 16:00  Zoom webinar  High-field Electron Transport and Interaction Induced Phenomena in 2D Materials file
171 2022-04-04- 16:00  E6, #1501  New paradigms in Quantum Field Theory
170 2022-04-08 11:00  E6-1 #1323  (응집물리 세미나) Flat-surface-assisted physical phenomena occurring in single crystal metal thin film file
169 2022-04-11 16:00  E6, #1501  Emergence of Statistical Mechanics in Quantum Systems
168 2022-04-13 10:30  E6 #1323/zoom  Harnessing topology and correlations from singularities in 3d-kagome metals
167 2022-04-14 16:00  E6 1323  (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency
166 2022-04-15 11:00  Online seminar  (응집물리 세미나) First-principles studies of polar oxides and their applications file