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
487 2022-11-11 11:00  E6-2 #1323  [Update 세미나영상] (응집물리 세미나) Honeycomb oxide heterostructures for quantum spin liquid file
486 2022-03-07 16:00  E6, #1501  Climate Physics and Modelling(우리말강의)
485 2022-08-01 10:00  E6 #1501 & Zoom  [Update 세미나 영상] James Webb Space Telescope & OTE Commissioning
484 2022-10-27 16:00  E6-2 #1323  (광학분야 세미나) Cavity optomechanical systems for quantum transduction
483 2011-05-16 16:00  E6, 1501  Photonics with surface plasmon polaritons
482 2016-05-17 11:00  창의학습관(E11), 406호  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
481 2013-09-09 16:00  E6, 1501  Physics Colloquium : 2013 Fall
480 2018-04-06 10:00  #2502, E6  Entanglement and thermalization in many-body systems: recent progress file
479 2015-09-15 16:00  E6, 1501  Physics Colloquium : 2014 Fall file
478 2022-03-14 16:00  E6, #1501  Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference
477 2023-04-27 16:00  E6-2 #1323  (광학분야 세미나)On-chip spectrometers based on CMOS image sensors
476 2021-05-27 16:00  온라인  찾아가는 물리연구 현장(유럽 입자물리학연구소 소개) file
475 2016-03-11 13:30  E6-2, 1501 외  Physics Seminar Serises : 2016 Spring file
474 2022-11-03 16:00  E6-2 #1323  (광학분야 세미나) Single-photon emission from low-dimensional materials
473 2015-09-07 16:00  E6, 1501  Physics Colloquium : 2015 Fall file
472 2022-04-11 16:00  E6, #1501  Emergence of Statistical Mechanics in Quantum Systems
471 2022-04-04- 16:00  E6, #1501  New paradigms in Quantum Field Theory
470 2022-05-09 16:00  E6, #1501  Searching for new electronic properties in correlated material flatland
469 2022-05-23 16:00  E6, #1501  Novel electronic transport in topological van der Waals magnets
468 2011-09-03 16:00  E6, 1501  Physics Colloquium : 2011 Fall file