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
302 2019-09-27 14:30  E6-2. 1st fl. #1323  Spin-charge conversion in topological insulators for spintronic applications file
301 2019-09-27 16:00  E6-2. 1st fl. #1323  0D/1D/2D/3D III-V materials grown by MBE for Optelectronics file
300 2019-10-15 16:00  #1323, E6-2  Moiré superlattices and graphene quasicrystal file
299 2019-10-16 16:00  #1323 (E6-2, 1st fl.)  Emergent black holes and monopoles from quantum fields file
298 2019-10-17 16:00  #1323, E6-2  Top down manipulation of Waves : From Metamaterials, Correlated Disorder, Quantum Analogy, to Digital Processing file
297 2019-10-25 15:00  #1323, E6-2  Physics Seminar file
296 2019-10-29 10:00  #1323 (E6-2, 1st fl.)  Unconventional Spin Transport in Quantum Materials file
295 2019-10-29 14:30  #1323, E6-2  Quantum sensing file
294 2019-10-29 16:00  #1323 (E6-2, 1st fl.)  Particles and Gravity via String Geometry file
293 2019-10-31 10:00  #1323 (E6-2, 1st fl.)  Kondo meets Hubbard: Impurity physics for correlated lattices file
292 2019-11-01 14:30  E6-2. 1st fl. #1323  Squeezing the best out of 2D materials file
291 2019-11-01 16:00  E6-2. 1st fl. #1323  Electron transport through weak-bonded contact metal with low dimensional nano-material file
290 2019-11-05 16:00  #1323, E6-2  Study on nanomaterials by the development of ultrahigh resolution laser-photoelectron microscopy (PEEM) file
289 2019-11-07 16:00  #1323, E6-2  Integrated quantum photonics with solid-state quantum emitters file
288 2019-11-14 16:00  #1323, E6-2  Semi-classical model of polariton propagation file
287 2019-11-20 16:00  #5302, E6-2  Correlation between superconducting transition temperature and critical current density in irradiated iron-based superconductors file
286 2019-11-28 16:00  #1323, E6-2  Generation of coherent EUV emissions using ultrashort laser pulses file
285 2019-12-03 16:00  #1323, E6-2  Toward Quantum Materials with Correlated Oxides file
284 2019-12-05 16:00  #1323, E6-2  Subwavelenth Photonic Devices: From Single Photon Sources to Solar Cell file
283 2019-12-13 13:00  #2501, E6-2  Computational Material Designs: Current Status and Future Directions file