visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-03-25 11:00 
일시 Mar. 25(Fri.) 11:00 
장소 E6-1 #1323 
연사 Prof. Ara Go (Department of Physics, Chonnam National University) 
1. Date / Time 
  - March 25, 2022 
  - 11:00 AM (KST)
 
2. Place / ZOOM 
    - Room 1323, KAIST Natural Sciences Lecture Hall(E6) (자연과학동 1323호)
 
3. Speaker
    - Prof. Ara Go (Department of Physics, Chonnam National University)
 
4. Talk Title
    - Hund's metallicity in ruthenate systems
 
5. Abstract
   -   Strong Coulomb interaction in transition metal compounds arises many emergent phenomena. The rotationally invariant local Coulomb interaction can be expressed as a combination of two terms, Hubbard interaction U and Hund's coupling J. The strong Hubbard interaction is well known to stabilize Mott insulating phase. On the other hand, in the specific region of the phase diagram, Hund's coupling drives a characteristic correlated metallic behavior--Hund's metal. 
    Ruthenate systems show typical Hund's metallic behavior. We investigate the interplay between van Hove singularity and Hund's coupling in the ruthenate systems. We perform systematic dynamical mean-field calculations for various parameters targeting the systems and specify the experimentally relevant region. By analyzing the atomic multiplet population, we identify the distinct nature of a strontium ruthenate 113 film and 214 bulk system.\
 
0221_카이스트 물리학과(응집물리)포스터-최종.jpg
번호 날짜 장소 제목
362 2022-03-07 16:00  E6, #1501  Climate Physics and Modelling(우리말강의)
361 2022-03-14 16:00  E6, #1501  Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference
360 2022-02-28 16:00  E6, #1501  Spin-based training of optical microscopes
359 2022-05-02 16:00  E6, #1501  What can we learn from the history of science and technology?(우리말강의)
358 2022-04-11 16:00  E6, #1501  Emergence of Statistical Mechanics in Quantum Systems
357 2022-05-23 16:00  E6, #1501  Novel electronic transport in topological van der Waals magnets
356 2022-05-09 16:00  E6, #1501  Searching for new electronic properties in correlated material flatland
355 2022-04-04- 16:00  E6, #1501  New paradigms in Quantum Field Theory
354 2022-05-16 16:00  E6, #1501  Design synthetic topological matter with atoms and lights
353 2022-05-30 16:00  E6, #1501  Light manipulation using 2D layered semiconductors
352 2015-10-23 10:30  E6, #1501  How to write a good scientific paper[Open lecture series]
351 2024-03-28 11:00  E6, #2501  Geometric characterization of thermoelectric performance of two-dimensional quadratic band-crossing semimetals
350 2016-03-07 16:00  E6, 1501  Physics Colloquium : 2016 Spring file
349 2015-09-07 16:00  E6, 1501  Physics Colloquium : 2015 Fall file
348 2015-03-09 16:00  E6, 1501  Physics Colloquium : 2015 Spring file
347 2015-09-15 16:00  E6, 1501  Physics Colloquium : 2014 Fall file
346 2014-03-10 16:00  E6, 1501  Physics Colloquium : 2014 Spring file
345 2013-09-09 16:00  E6, 1501  Physics Colloquium : 2013 Fall
344 2013-03-11 16:00  E6, 1501  Physics Colloquium : 2013 Spring
343 2012-04-02 16:00  E6, 1501  A new route to ferroelectricity in magnetic spinels: a case of Co2MnO4