visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2017-11-08 13:00 
일시 Nov. 8 (Wed.), 1:00 PM 
장소 #5318 (E6-2. 5th fl.) 
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)

 

20171108_Prof.Yuji Matsuda.pdf

번호 날짜 장소 제목
237 2022-11-03 16:00  E6-2 #1323  (광학분야 세미나) Single-photon emission from low-dimensional materials
236 2023-06-01 16:00  E6-2 #1323  (광학분야 세미나)Quantum sensing using a squeezed light from hot Rb vapor
235 2022-10-28 11:00  E6-2 #1323  [Update 세미나영상] (응집물리 세미나) Machine-Learning-Guided Prediction models and Materials discovery for high Tc cuprates file
234 2022-12-09 11:00  E6-2 #1323  [Update 세미나영상](응집물리 세미나) Single-shot measurements of strongly-correlated artificial molecular levels in semiconductor quantum dots file
233 2023-03-16 16:00  E6-2 #1323  2023 봄학기 광학분야 및 응집물리 특별세미나 전체 일정 file
232 2022-11-25 11:00  E6-2 #1323  [Update 세미나영상](응집물리 세미나) DMFT+ NRG: From models to real materials, from local to nonlocal correlations file
231 2017-10-10 16:00  E6-2 #1323  Discovery of New 2D Materials with Diverse Physical Properties
230 2020-10-23 14:00  E6-2 #1323  Plasmon spectroscopy of low-dimensional superconductors in fluctuating regime file
229 2023-04-27 11:00  E6-2 #1322  Inverse Shapiro steps and coherent quantum phase slip in superconducting nanowires
228 2022-12-13 11:00  E6-2 #1322  Art of thin film engineering toward topological quantum computation file
227 2024-01-26 15:00  E6-2 #1323  In-situ 4D-STEM studies on surface reconstruction and polarization switching of perovskite oxides
226 2023-10-19 11:00  E6-2 #1322  Emergent functionalities of iridium oxide films with different growth orientation file
225 2018-12-26 16:00  E6-1. 3rd fl. #3434  Informal Workshop on Topology and Correlation file
224 2018-10-24 10:30  E6-1, Lecture Room 1501(1F)  Photonic integration of next-generation clocks and Hertz-absolute-accuarcy optical frequenncy synthesizers file
223 2024-02-26 16:00  E6-1 #1501  2024 봄학기 콜로키움 전체 일정 file
222 2023-08-24 12:00  E6-1 #1501  2023 가을학기 콜로키움 전체 일정 file
221 2022-09-21 10:30  E6-1 #1501  [Update 세미나 영상] Distinguished Lecture 'The Magic of Moiré Quantum Matter' Prof. Pablo Jarillo-Herrero(Department of Physics, MIT) file
220 2023-02-27 12:00  E6-1 #1501  2023 봄학기 콜로키움 전체 일정 file
219 2022-04-08 11:00  E6-1 #1323  (응집물리 세미나) Flat-surface-assisted physical phenomena occurring in single crystal metal thin film file
218 2022-08-12 10:00  E6-1 #1323  Twisted Bilayer Magnets file