visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-04-08 16:00 
일시 Apr. 08 (Fri.), 4:00 PM 
장소 E6-2. 5st fl. #1501 
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)

번호 날짜 장소 제목
462 2022-03-31 16:00  online  (광학분야 특별세미나)Ultrafast time-resolved spectroscopy in topological materials
461 2022-05-19 15:00  online  (광학분야 특별세미나)Development of a multimodal optical system for improved disease diagnosis
460 2020-11-20 14:30  Online  Lumpy Cooper pairs in an iron-based superconductor
459 2021-03-02 16:00  Online  Sensitive terahertz detection with graphene-based transistors file
458 2020-12-11 16:00  online  Atomic and electronic reconstruction at van der Waals interface in twisted 2D materials
457 2020-12-23 10:00  Online  Online workshop for Quantitative Phase Imaging file
456 2020-11-20 16:00  Online  Coherent control of field gradient induced quantum dot spin qubits
455 2020-12-11 14:30  online  Antisymmetric interlayer exchange coupling in magnetic multilayers
454 2021-02-17 09:00  Online  석학 대중 강연 및 강의 시리즈 file
453 2016-09-05 16:00  Natual Scien Bldg.(E6)m #1501  Physics Colloquium : 2016 Fall file
452 2016-05-19 15:00  May 19, 2016 (Thur.) 3PM,  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
451 2017-01-09 16:00  Lecture Hall, College of Natural Sciences [#1501,E6-2]  Topological Defects and Phase Transitions" file
450 2016-04-18 15:30  KI빌딩(E4), 강의실 B501 (5F)  First Principles Approaches for Intermolecular Interactions: From Gas-Phase Dimers to Liquid Water and Molecular Crystal Polymorphism file
449 2014-05-28 17:00  KI Building, Matrix Hall  부품소재산업이 미래다
448 2022-08-09 14:00  KI building (E4), Lecture Room Red (B501)  Quantum biology in fluorescent protein: a new model system to study quantum effects in biology file
447 2023-02-20 17:00  KI building (E4), Lecture Room Red (B501)  (Optics Seminar) Neural Holography for Next generation Virtual and Augmented Reality Displays file
446 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
445 2016-08-04 14:30  KAIST Natural Science Building (E6-5), EDU 3.0 Room(1st fl.)  Relational Logic (with applications to Quantum Mechanics, String Theory, Cosmology, Neutrino Oscillations, Statistical Mechanics)
444 2016-04-04 09:30  KAIST Natural Science Building (E6-2), RM #4314  Radio frequency engineering
443 2015-10-14 18:00  KAIST Munji Campus Supex Hall  인터스텔라 영화 속의 물리 file