visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-03-25 11:00 
연사  
장소 E6-1 #1323 
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 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
446 2016-03-11 13:30    Topological phases of matter in nonequilibrium: Topology of the Wannier-Stark ladder
445 2018-11-01 16:00    Direct holography from a single snapshot file
444 2022-08-18 10:00    Disorder-driven phase transition in the second-order non-Hermitian skin effect
443 2023-04-27 11:00    Inverse Shapiro steps and coherent quantum phase slip in superconducting nanowires
442 2015-07-16 16:00    Next-generation ultrafast laser technology for nonlinear optics and strong-field physics
441 2018-10-26 16:00    Coexisting triple-point and nodal-line topological magnons and thermal Hall effect in pyrochlore iridates file
440 2017-03-24 14:30    Topological Dynamics
439 2015-10-15 10:00    Development of Large-Bore, High Field Magnets at the NHMFL
438 2023-06-22 16:00    [CAPP Seminar] The muon g-2 puzzle file
437 2016-05-19 15:00    The CERN Resonant WISP Search: Development, Results and Lesson-Learned
436 2016-07-08 11:00    Isostatic magnetism
435 2015-11-23 13:30    What's Beyond the Standard Model? Lessons from Run I and what might come in Run II
434 2017-02-01 14:00    Quantum electron optics using flying electrons
433 2019-09-10 15:00    Two-Stage Kondo Effect file
432 2017-11-03 14:30    Quantum Resistor-Capacitor Circuit with Majorana Edge States file
431 2019-07-30 16:00    Dirac fermions and flat bands in correlated kagome metals file
430 2023-07-11 11:00    Ordered phases, non-Fermi liquid, and quantum criticality driven by entanglement between multipoles and conduction electrons
429 2017-04-28 16:00    Carbon nanotubes coupled to superconducting impedance matching circuits
428 2016-09-29 16:00    Exploring the phase diagram of BaBiO3: epic voyage of just another bad trip?
427 2019-06-12 15:00    The relation between free and interacting fermionic SPT phases file