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
117 2023-05-15 16:00    Role of dark Higgs boson in DM physics and cosmology file
116 2023-05-17 14:00    Optical Response in the multilayer thin films
115 2023-05-17 16:30    Detecting Hidden Photon Dark Matter via the Excitation of Qubits file
114 2023-05-18 16:00    (광학분야 세미나)Dielectric metasurfaces for optimized optical system and spatial light modulators
113 2023-05-19 11:00    (응집물리 세미나)Dipole condensations in Tilted Bose-Hubbard Chains
112 2023-05-22 13:00    Design & Development of Electrochemical Biosensors for the Detection of T2DM Biomarkers
111 2023-05-26 11:00    (응집물리 세미나)Spectral Analyses of Stochastic Charge Trapping in Oxide Heterostructures file
110 2023-05-31 16:00    [High-Energy Theory Seminar] Resurgence and complex Chern-Simons theory
109 2023-06-01 16:00    Hall viscosity and topological phenomena
108 2023-06-01 16:00    (광학분야 세미나)Quantum sensing using a squeezed light from hot Rb vapor
107 2023-06-08 16:00    Thermal decoupling in high-Tc cuprate superconductors
106 2023-06-14 16:00    [CAPP seminar] EMC at CERN file
105 2023-06-14 16:00    [High-Energy Theory Seminar]Vertex algebras and extended operators in 4d N=2 SCFTs
104 2023-06-15 16:00    [CAPP Seminar] Cryogenic electronics for ion traps file
103 2023-06-16 13:00    Quantum critical states under extreme conditions
102 2023-06-22 16:00    [CAPP Seminar] The muon g-2 puzzle file
101 2023-06-22 16:00    [High Energy Physics Seminar] The Branes Behind Generalized Symmetry Operators
100 2023-06-23 11:00    Visualizing orbital quantum phenomena at room temperature
99 2023-06-26 11:00    Quantum computing on magnetic racetracks with flying domain wall qubits
98 2023-06-30 11:00    The Dual Mode Quantum Computer file