“Emergent exotic quasiparticles in quantum spin liquids”
2017.11.08 10:43
장소 | #5318 (E6-2. 5th fl.) |
---|---|
일시 | Nov. 8 (Wed.), 1:00 PM |
연사 | Prof. Y. Matsuda Department of Physics, Kyoto University |
“Emergent exotic quasiparticles in quantum spin liquids”
Prof. Y. Matsuda
Department of Physics, Kyoto University
Nov. 8 (Wed.), 1:00 PM
#5318 (E6-2. 5th fl.)
Quantum spin liquid (QSL) is an exotic quantum phase of matter whose ground state is quantum-mechanically entangled without any magnetic ordering. A central, yet poorly understood issue concerns the excitations that characterize QSLs, which are hypothetically associated with the quasiparticle fractionalization and topological order. It is widely believed that in dimensions more than one, geometrical frustrations are required to realize QSL states. Here I discuss emergent exotic quasiparticles of three types of QSL states in frustrated quantum magnets mainly by thermal transport measurements.
1) Spinon excitations in organic Mott insulator EtMe3Sb[Pd(dmit)2]2 and 1T-TaS2 with triangular lattice.
2) Magnetic monopole (M-particle), electric monopole (E-particle), and photon (n-particle) excitations in rare earth pyrochlore oxides, Yb2Ti2O7 and Pr2Zr2O7, both of which host spin-ice correlations with strong quantum fluctuations.
3) Majorana fermion excitations and the half integer thermal Hall effect in a Kitaev QSL state on honeycomb lattice of a-RuCl3
Contact: Eun Gook Moon, Physics Dept., (egmoon@kaist.ac.kr)
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
공지 | 2019/09/18 - 12/5 | Seminar Room #1323 | Prof. David Schuster and etc. | Fall 2019: Physics Seminar Serises |
공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
318 | 2018년 9월 7일 (금), 3PM | 학술문화관 (E9), 2층 양승택 오디토리움 | Prof. Martin Head-Gordon, UC Berkeley |
Recent developments in density functional theory: From new functionals to the nature of the chemical bond
![]() |
317 | 5월 17일(화), 11:00 ~ 12:00 | 창의학습관(E11), 406호 | 방준혁 박사(Korea Basic Science Institute, KBSI) | The CERN Resonant WISP Search: Development, Results and Lesson-Learned |
316 | Dec. 13-14(Wed.-Thu.) 13:30 PM | 자연과학동 대형강의실 (1501호) | 장기주 교수 외 9명 |
KAIST-KIAS Joint Workshop in Theoretical Sciences 개최
![]() |
315 | August 1, 2018 at 11:00AM | 양분순 빌딩 (E16-1) 207호 | 이대열 교수, 예일대 석좌교수 |
Future of AI: Is the brain a computer?
![]() |
314 | Aug. 17(Mon), 20:00~ | Zoom webinar | Mark D. Stiles (NIST, USA) |
Using magnetic tunnel junctions to compute like the brain
![]() |
313 | Aug, 25(Tue), 20:00~ | Zoom webinar | Mark D. Stiles (NIST, USA) |
KAIST Global Forum for Spin and Beyond (Second Forum)
![]() |
312 | Sep. 14(Mon) 17:30~ | Zoom webinar | Teruo Ono (Kyoto U. Japan) |
KAIST Global Forum for Spin and Beyond (Third Forum)
![]() |
311 | Sep. 22nd 9:30 AM | Zoom webinar | Prof. Xu Yi (Univ. of Virginia, USA) |
Physics and applications of soliton microcombs(Quantum- & Nano-Photonics)
![]() |
310 | Sep.28. 5:30 pm | Zoom webinar | Burkard Hillebrands (TU Kaiserslautern, Germany) |
KAIST Global Forum for Spin and Beyond(Fourth Forum)
![]() |
309 | July 2, 2020 (Thursday) | Zoom Video Conference Seminar | Dr. Emmanuel Flurin (CEA Saclay) |
An irreversible qubit-photon coupling for the detection of itinerant microwave photons
![]() |
308 | Sep. 24(Thu), 09:00~, Sep. 24(Thu), 16:00 ~ | Zoom Video | Akash V. Dixit (University of Chicago), Dr. Boris Ivanov (Novosibirsk State Technical University) |
(CAPP/IBS)Searching for Dark Matter with a Superconducting Qubit , Cryogenic Microwave Circuit Development at the NSTU
![]() |
307 | Sep. 11(Fri), 14:00~ | zoom | 이관형교수/SNU, 이상윤교수/GIST |
SRC Seminar
![]() |
306 | December 2(Wed), 10:00AM | Zoom | Prof. Rakshya Katiwada (Illinois Institute of Technology) |
Recent progress in Axion Dark Matter eXperiment (ADMX) technology
![]() |
305 | Dec.9(Wed), 10:00AM | Zoom | Prof. Andrew Geraci (Northwestern University) |
Searching for the QCD axion with the ARIADNE experiment
![]() |
304 | Dec.10(Thu), 01:55 PM | Zoom | Yin Wen (University of Tokyo) | Consistency of Boltzmann equation and light dark matter from inflaton decay |
303 | Apr. 27, 2017 (Thu) 4:00 pm | Seminar Room(#1323, E6-2) | Prof.Donghan Lee (Chungnam National Univ.) | 반도체 양자점을 이용한 단광자 광원 |
302 | 2017/03/06 - 05/29 | Seminar Room 1501 | 이종봉 박사 (POSTECH) 외 |
Spring 2017: Physics Colloquium
![]() |
301 | 2017/03/21 - 06/08 | Seminar Room 1323 | 조길영 박사(KAIST) 외 |
Spring 2017: Physics Seminar Serises
![]() |
300 | Thursday, December 14, 2017 at 3:00 pm | Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus | Chunglee Kim (KASI) | Exploring the Universe via GWs in the era of multi-messenger astronomy |