visual
visual

세미나

  • 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

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 장소 제목
공지 2022-10-24 16:00  E6 #1501(공동강의실)  Physics Colloquim(Fall 2022)
공지 2022-09-21 10:30  E6-1 #1501  [Update 세미나 영상] Distinguished Lecture 'The Magic of Moiré Quantum Matter' Prof. Pablo Jarillo-Herrero(Department of Physics, MIT)
공지 2022-11-11 11:00  E6-2 #1323  [Update 세미나영상] (응집물리 세미나) Honeycomb oxide heterostructures for quantum spin liquid
공지 2022-10-28 11:00  E6-2 #1323  [Update 세미나영상] (응집물리 세미나) Machine-Learning-Guided Prediction models and Materials discovery for high Tc cuprates
공지 2022-10-07 11:00  E6-2 #1323  [Update 세미나 영상] (응집물리 세미나) Competing orders in a vanadium-based kagome metal monolayer
공지 2022-09-23 11:00  E6-2 #1323  [Update 세미나 영상] (응집물리 세미나) Steady Floquet-Andreev states in graphene Josephson junctions
공지 2022-09-22 11:00  E6-1 #1323  2022 가을학기 응집물리 및 광학 세미나 전체 일정
113 2018-11-29 16:00  #1323, E6-2  양자 칸델라 실현을 위한 단일 광자 발생장치 개발 file
112 2022-04-01 16:00  Zoom webinar  High-field Electron Transport and Interaction Induced Phenomena in 2D Materials file
111 2015-11-24 16:00  E6-2, #1323  Topology-based understanding of spin dynamics in inhomogeneously magnetized systems
110 2016-07-08 14:00  #1323(E6-2. 1st fl.)  Electronic quasiparticles in the quantum dimer model
109 2016-10-18 15:00  E6-2. 1st fl. #1323  “Hybrid quantum systems with mechanical oscillators”
108 2015-12-17 11:00  E4(KI Building), Matrix Hall (2nd fl.)  Wavefront engineering for in-vivo Deep brain imaging
107 2018-07-27 13:30  #1323, E6-2  Magnetic reversal of artificial spin ice file
106 2018-07-27 13:30  #1323, E6-2  Magnetic reversal of artificial spin ice file
105 2017-07-14 15:00  #1323 (E6-2. 1st fl.)  Chiral anomaly in disordered Weyl semimetals file
104 2019-11-01 16:00  E6-2. 1st fl. #1323  Electron transport through weak-bonded contact metal with low dimensional nano-material file
103 2022-11-04 16:30  Zoom  초세대 협업연구실 Quantum- & Nano-Photonics_Multifunctional neural probes with integrated nanophotonics file
102 2019-09-27 14:30  E6-2. 1st fl. #1323  Spin-charge conversion in topological insulators for spintronic applications file
101 2018-12-07 16:00  E6-2. 1st fl. #1323  Novel probes of interacting electrons in 2D systems file
100 2018-10-19 10:00  #1323, E6-2  Energy conversion processes during magnetic reconnection in a laboratory plasma file
99 2016-11-04 13:30  E6-2. #1323(1st fl.)  Exotic phenomena at oxide LaAlO3/SrTiO3 hetero-interface and their applications
98 2015-08-03 10:30  E6-2, #1323 (Seminar Room)  Axion Search
97 2016-04-01 16:15  E6-2. 1st fl. #1501  Cotunneling drag effect in Coulomb-coupled quantum dots
96 2019-12-03 16:00  #1323, E6-2  Toward Quantum Materials with Correlated Oxides file
95 2017-03-02 16:00  #1323(E6-2. 1st fl.)  “Progress in the comparison of ARPES to DMFT for d and f strongly correlated electron systems”
94 2016-12-8 16:00  #1323(E6-2. 1st fl.)  Dynamical Resonance between Two Optical Cavities via Optomechanical Oscillator