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
342 2019-10-29 14:30  #1323, E6-2  Quantum sensing file
341 2019-05-02 16:00  #1323, E6-2  Anomalous optical properties of halide perovskites file
340 2019-04-11 16:00  #1323, E6-2  Massive screening for cathode active materials using deep neural network file
339 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
338 2018-09-20 16:00  #1323, E6-2  Toward Cancer Treatment Using Terahertz Radiation: Demethylation of Cancer DNA file
337 2018-10-18 16:00  #1323, E6-2  Applications of nonlinear optics for condensed matter researches file
336 2018-05-09 16:00  #1323, E6-2  Recent advances in thermoelectric bulk composites file
335 2017-01-09 16:00  Lecture Hall, College of Natural Sciences [#1501,E6-2]  Topological Defects and Phase Transitions" file
334 2016-07-28 16:00  #1323(E6-2. 1st fl.)  Low Dimensional Electrons: On the Road to Hybrid Quantum Systems
333 2019-04-23 16:00  #1323, E6-2  From Mott physics to high-temperature superconductivity file
332 2022-07-21 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  Quintessential axions file
331 2019-11-14 16:00  #1323, E6-2  Semi-classical model of polariton propagation file
330 2017-12-15 09:20  E6-2, Lecture Room #1323  Workshop on Magnetism in Unconventional Superconductors 개최 file
329 2019-11-07 16:00  #1323, E6-2  Integrated quantum photonics with solid-state quantum emitters file
328 2018-05-29 16:00  #1323, E6-2  Investigation on metal nanostructure/semiconductor junction and its applications file
327 2020-10-23 14:00  E6-2 #1323  Plasmon spectroscopy of low-dimensional superconductors in fluctuating regime file
326 2018-07-13 14:00  Room 5318, KAIST Natural Sciences Lecture Hall(E6).  Loop Induced Single Top Partner Production and Decay at the LHC
325 2018-12-11 16:00  E6-2. 1st fl. #1323  Natural compact representation of Matsubara Green’s functions: applications to analytic continuation and quantum many-body simulations file
324 2017-08-31 14:00  #5318(E6-2. 5th fl.)  “Berry phase and nonlinear response: photocurrent in noncentrosymmetric insulators and Weyl semimetals” file
323 2023-06-08 16:00  E6-2, #1323  Thermal decoupling in high-Tc cuprate superconductors