| 장소 | E6-2. 5st fl. #1501 |
|---|---|
| 일시 | Apr. 08 (Fri.), 4:00 PM |
| 연사 | Dr. Changyoung Kim, SEOUL NATIONAL UNIV. |
“Spectroscopic studies of iron-based superconductors : what have we learned?”
Apr. 08 (Fri.), 4:00 PM, E6-2. 5st fl. #1501
Dr. Changyoung Kim, SEOUL NATIONAL UNIV.
As in the cases for other materials, measuring the electronic structures is the first step towards understanding the microscopic mechanism for the superconductivity in of iron-based superconductors (IBS). Angle resolved photoelectron spectroscopy (ARPES) has played a key role in the studies of IBS, from band structure determination to superconducting gap measurements.
In this presentation, I will give an overview on the spectroscopic studies of IBS by using ARPES including recent progress on 100K superconductivity in mono-layer FeSe. I will start with a brief description of the general electronic structures (band dispersions and Fermi surfaces) and orbital characters of bands measured by ARPES. The main part of the presentation will be on two subjects, namely, nematic order and mono-layer superconductivity. The anisotropic electronic structure of the nematic order can be investigated by ARPES. In addition, ARPES is also surface sensitive which makes it suitable for the study of mono-layer superconductivity. I will discuss our recent work on these two subjects along with results from other groups.
Contact: Eun Gook Moon, Physics Dept., (egmoon@kaist.ac.kr)
댓글 0
| 번호 | 일시 | 장소 | 연사 | 제목 |
|---|---|---|---|---|
| 공지 | 2019/09/18 - 12/5 | Seminar Room #1323 | Prof. David Schuster and etc. | Fall 2019: Physics Seminar Serises |
| 공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
| 258 | 2016/1/26, 2PM | E6-2, #1323 | Dr. Sergei V. Kalinin (Center for Nanophase Materials Sciences, Oak Ridge National Laboratory) | Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data |
| 257 | 2017.1.9(Mon), 4PM | Lecture Hall, College of Natural Sciences [#1501,E6-2] | Prof. John Michael Kosterlitz, Brown University |
Topological Defects and Phase Transitions"
 |
| 256 | 2017/03/06 - 05/29 | Seminar Room 1501 | 이종봉 박사 (POSTECH) 외 |
Spring 2017: Physics Colloquium
|
| 255 | 2017/03/21 - 06/08 | Seminar Room 1323 | 조길영 박사(KAIST) 외 |
Spring 2017: Physics Seminar Serises
|
| 254 | 2018. 6. 22 10:00am ~ 11:50am | E6-6, Lecture Room 119 (1F) | Prof. Sang Bok Lee, Dept. of Chemistry and Biochemistry, Univ. of Maryland |
Success in Research Career
|
| 253 | 2018년 9월 7일 (금), 3PM | 학술문화관 (E9), 2층 양승택 오디토리움 | Prof. Martin Head-Gordon, UC Berkeley |
Recent developments in density functional theory: From new functionals to the nature of the chemical bond
|
| 252 | 2019. 7. 16(화) | Rm. 1323 (E6-2) | Prof. Sidney Nagel |
2019 Physics Distinguished Lecture
|
| 251 | 2019. 8. 22 4PM & 8. 23 3PM | #1323, E6-2 | Prof. Andrew N Cleland |
Physics and Applications in Nanoelectronics and Nonomechanics
|
| 250 | 3 PM, 12 Jun (Wed), 2019 | Rm# 1323, E6-2 | Dr. Minyoung You |
The relation between free and interacting fermionic SPT phases
|
| 249 | 4pm, Sep. 21 (Wed. | E6-2. #2502(2nd fl.) | Dr. Henrik Johannesson , University of Gothenburg (Sweden) and Beijing Computational Science Research Center (China) | Entanglement probe of two-impurity Kondo physics |
| 248 | 4월 18일(월), 15:30~ | KI빌딩(E4), 강의실 B501 (5F) | Prof. Robert A. DiStasio Jr. (Cornell University) |
First Principles Approaches for Intermolecular Interactions: From Gas-Phase Dimers to Liquid Water and Molecular Crystal Polymorphism
|
| 247 | 5월 17일(화), 11:00 ~ 12:00 | 창의학습관(E11), 406호 | 방준혁 박사(Korea Basic Science Institute, KBSI) | The CERN Resonant WISP Search: Development, Results and Lesson-Learned |
| 246 | 8/19 (Mon), 10:00~11:30, 8/22 (Thur), 10:00~11:30 | Rm. 1322, E6-2 | Nicolas Treps |
Tutorials on Multimode Quantum Optics in the Continuous Variable Regime
|
| 245 | Apr. 01 (Fri.) 2:30 PM | E6-2. 1st fl. #1501 | Dr. KICHEON KANG, Chonnam National University | Interference of single charged particles without a loop and dynamic nonlocality |
| 244 | Apr. 01 (Fri.) 4:15 PM | E6-2. 1st fl. #1501 | Dr. JONG SOO LIM, KIAS | Cotunneling drag effect in Coulomb-coupled quantum dots |
| 243 | Apr. 08 (Fri.), 13:30 PM | E6-2. 1st fl. #1501 | Dr. Yunkyu Bang, Chonnam National Univ. | Theoretical Overview of Iron-based superconductors and its future |
| » | Apr. 08 (Fri.), 4:00 PM | E6-2. 5st fl. #1501 | Dr. Changyoung Kim, SEOUL NATIONAL UNIV. | Spectroscopic studies of iron-based superconductors : what have we learned? |
| 241 | Apr. 09 (Mon.), 11:00 AM | E6-2. 1st fl. #1323 | Dr. Seung-Sup B. Lee |
Doublon-holon origin of the subpeaks at the Hubbard band edges
|