visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
장소 E6-1 #1323 
일시 Mar. 25(Fri.) 11:00 
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 일시 장소 연사 제목
공지 Sep.22 2022  E6-1 #1323    2022 가을학기 응집물리 및 광학 세미나 전체 일정
200 Oct. 27 (Thu), 4:00PM  E6-2 #1323  서준호(한국표준연구원 박사)  (광학분야 세미나) Cavity optomechanical systems for quantum transduction
199 Nov. 17 (Thu), 4:00PM  E6-2 #1323  김두리(한양대학교 화학과 교수)  (광학분야 세미나) Ultrastructural and Spectroscopic Studies by Super-Resolution Fluorescence Microscopy
198 Sep. 22 (Thu), 4:00PM  E6-2 #1323  김동하(KAIST 물리학과 박사)  (광학분야 세미나) Quasi-particle-like optical vortices in magnetic materials
197 Nov. 24 (Thu) 2022, 4:00PM  E6-2 #1323  유정완(기초과학연구원, Center for Theoretical Physics of Complex Systems 교수)  (광학분야 세미나) Non-Hermitian physics and non-Hermitian singularity
196 June 3(Fri.) 11:00  E6-2 #1323  Prof. Gil Young Cho (Department of Physics, POSTECH)  (응집물리 세미나) Theoretical Investigation of Exotic Quantum States in Low-dimensional Materials
195 Oct 23 (Fri.), 14:00 PM  E6-2 #1323  Prof. Ivan Savenko (University of Science and Technology & IBS PCS)  Plasmon spectroscopy of low-dimensional superconductors in fluctuating regime file
194 Oct. 10(Tue) 4PM  E6-2 #1323  김성웅 교수 (성균관대학교 에너지과학과)  Discovery of New 2D Materials with Diverse Physical Properties
193 DEC. 26 (Wed), 04:00 PM  E6-1. 3rd fl. #3434  Y. Kim, A. Go, K. Hwang and E.-G. Moon  Informal Workshop on Topology and Correlation file
192 October 24 (Wed.), 10:30 AM  E6-1, Lecture Room 1501(1F)  Prof. Kerry J. Vahala  Photonic integration of next-generation clocks and Hertz-absolute-accuarcy optical frequenncy synthesizers file
191 Sep. 21(Wed.) 10:30~12:00  E6-1 #1501  Pablo Jarillo-Herrero(Department of Physics, MIT)  Distinguished Lecture 'The Magic of Moiré Quantum Matter' file
190 Aug.12(Fri.) 10:00AM, 2022  E6-1 #1323  Dr. Moon Jip Park (Center for Theoretical Physics of Complex Systems, IBS)  Twisted Bilayer Magnets file
189 April 08(Fri.) 11:00  E6-1 #1323  Prof. Se-Young Jeong (Optics and Mechatronics Engineering , Pusan National University)  (응집물리 세미나) Flat-surface-assisted physical phenomena occurring in single crystal metal thin film file
» Mar. 25(Fri.) 11:00  E6-1 #1323  Prof. Ara Go (Department of Physics, Chonnam National University)  (응집물리 세미나) Hund's metallicity in ruthenate systems file
187 May 20(Fri.) 11:00  E6-1 #1323  Prof. Kwanpyo Kim (Department of Physics, Yonsei University)  (응집물리 세미나) Exploration of new polymorphs in van der Waals crystals
186 Aug.18 (Thr), 10:00 AM  E6-1 #1323  Dr. Kyoung-Min Kim (Center for Theoretical Physics of Complex Systems, IBS)  Disorder-driven phase transition in the second-order non-Hermitian skin effect
185 2014/12/22, 2PM  E6, Rm1319  Prof. Changbong Hyeon (KIAS)  Dynamics of molecular motors: Power stroke vs Brownian ratchet file
184 2016/03/07-06/13  E6, 1501  Prof. David Helfman(KAIST) 외  Physics Colloquium : 2016 Spring file
183 2015/09/07-12/01  E6, 1501  문은국 교수(KAIST) 외  Physics Colloquium : 2015 Fall file
182 2015/03/09-06/08  E6, 1501  최현용교수(연세대) 외12명  Physics Colloquium : 2015 Spring file