(응집물리 세미나) Hund's metallicity in ruthenate systems
2022.05.25 09:11
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)
- Link: https://kaist.zoom.us/j/87307858369?pwd=am5MUmZSaHZFS0pDRkxPTWloSDNYdz09
- PW: 079031
- PW: 079031
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.\

댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
232 | 2015/10/23-12/4 10:30 AM | E6, #1501 | Prof. YongKeun Park & Prof. Tae-Young Yoon | How to write a good scientific paper[Open lecture series] |
231 | 2016/03/07-06/13 | E6, 1501 | Prof. David Helfman(KAIST) 외 |
Physics Colloquium : 2016 Spring
![]() |
230 | 2015/09/07-12/01 | E6, 1501 | 문은국 교수(KAIST) 외 |
Physics Colloquium : 2015 Fall
![]() |
229 | 2015/03/09-06/08 | E6, 1501 | 최현용교수(연세대) 외12명 |
Physics Colloquium : 2015 Spring
![]() |
228 | 2015/09/15-12/08 | E6, 1501 | 박제근 교수(서울대 물리학과) 외12명 |
Physics Colloquium : 2014 Fall
![]() |
227 | 2014/03/10-06/09 | E6, 1501 | 신용일교수(서울대) |
Physics Colloquium : 2014 Spring
![]() |
226 | 2013/09/09-12/09 | E6, 1501 | 박혁규교수(부산대) 외 | Physics Colloquium : 2013 Fall |
225 | 2013/03/11-06/10 | E6, 1501 | 강명수교수(KAIST) 외 | Physics Colloquium : 2013 Spring |
224 | 2012/04/02, 4PM | E6, 1501 | Yong Hee Jeong | A new route to ferroelectricity in magnetic spinels: a case of Co2MnO4 |
223 | 2012/02/13-05/14 | E6, 1501 | Kenji Ohmori (Photo-Molecular Science, IMS) | Physics Colloquium : 2012 Spring |
222 | 2011/09/03-12/06 | E6, 1501 | 김용균교수(한양대) 외 |
Physics Colloquium : 2011 Fall
![]() |
221 | 2011/05/16, 4PM | E6, 1501 | 서민교교수(KAIST) | Photonics with surface plasmon polaritons |
220 | 2010/02/14-05/09 | E6, 1501 | 황철주(주성엔지니어링 사장) 외 |
Physics Colloquium - 2011 Spring
![]() |
219 | 2010/09/06-12/06 | E6, 1501 | 조호진기자(조선일보) 외 |
Physics Colloquium : 2010 Fall
![]() |
218 | 2010/02/08-05/03 | E6, 1501 | 최인수교수(서울대) 외 |
Physics Ciolloquium : 2010 Spring
![]() |
217 | 2009/10/21, 4PM | E6, 1501 | 최석봉교수(서울대) | Interdimensional Universality of Dynamic Interfaces |
216 | 2009/09/07-11/30 | E6, 1501 | 이주영박사(KIAS) 외 |
Physics Colloquium : 2009 Fall
![]() |
215 | 2009/02/23-05/04 | E6, 1501 | 안종현교수(성균관대) 외 |
Physics Colloquium : 2009 Spring
![]() |
214 | 2014/12/22, 2PM | E6, Rm1319 | Prof. Changbong Hyeon (KIAS) |
Dynamics of molecular motors: Power stroke vs Brownian ratchet
![]() |
213 | 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
![]() |