logo

korean english

게시판

Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다. .


4시 20분부터 제1과학관 31214 e+강의실에서 간단한 다과를 제공합니다.


아 래


Title: Majorana quasiparticles emergent in Kitaev quantum magnets


Speaker:         교수님 (중앙대학교)


Date & Time: April. 5. (Wed.) 2017, 4:30 PM


Place: Natural Science 1,  Room No. 31214


Abstract: Quantum spin liquids are a long-range quantum entangled state that entails topological order and fractionalization of constituent magnetic moments. Their physical realization holds promise for the implementation of decoherence-free quantum computer and provides a unified conceptual framework that underpins dark matter in universe, composite fermions in quantum Hall liquids, magnetic monopoles in spin ices, and spinons in frustrated magnets. The Kitaev honeycomb lattice is envisioned as an ideal host for Majorana quasiparticles that are created out of the spin liquid vacuum. In this talk, we will present experimental signatures of Majorana fermions emergent in Kitaev materials: the 2D honeycomb lattice α-RuCl3 and the harmonic-honeycomb iridates β- and γ-Li2IrO3. In α-RuCl3 extensive thermodynamic and spectroscopic measurements unveil two distinct characters of fractionalized excitations as a result of thermal fractionalization of s=1/2 spins. In the hyperhoneycomb iridates, polarization-resolved Raman spectroscopy shows a thermal damping of fermionic excitations, expanding the concept of fractionalized quasiparticles to a 3D Kitaev-Heisenberg spin system.


번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1091251
216 <4/10> Holographic Nucleons: In Search of a String Theoretical Solution to QCD 2009.04.06 79606
215 <10/26> 빛으로 보는 세상 2011.10.17 80109
214 <May.22(Wed.)> Introduction to exotic quantum states in solids 2019.05.15 80154
213 <9/14> Single-molecule techniques for studying biomolecules 2007.09.11 80179
212 콜로퀴움 게시판입니다. 2011.02.28 80340
211 <6/13> Efficient hybrid organic-inorganic light emitting diodes by surface modification of metal oxides 2012.06.01 80411
210 <Nov.14(Wed.) 4:30 PM> Status and Prospects for the IceCube Neutrino Observatory 2018.11.07 80447
209 2011학년도 1학기 콜로퀴엄 일정 안내 2011.01.25 80461
208 <9/26> High Energy Physics as e-Science 2008.09.22 80470
207 <3/23> 차세대 전자 소자용 산화물 반도체 박막의 개발 2007.03.20 80513
206 <11/30> 기능성 산화물의 현황과 응용 2011.11.24 80591
205 <11/17>의학에서의 치료음향 Therapeutic Sound in Medicine 2006.11.15 80642
204 <Sep. 27(Wed.) 4:30 PM> Triboelectric and Piezoelectric Nanogenerators for Self-Powered Electronics 2017.09.20 80827
203 <5/26> Nanomagnetic Materials and First Principles Approach 2006.05.22 80930
202 <5/16>모의실험을 이용한 물리학습 2008.05.13 80943
201 <9/22> 진실 vs. 거짓, 도대체 과학이란 무엇인가? 2006.09.18 80944
200 <11/28> 건국 100주년을 대비하는 과학청년의 자세 2008.11.25 80945
199 2008학년도 1학기 물리세미나1 강의계획서 2008.03.18 81220
198 <9/7> 과학과 예술 (Science and Arts) 2011.08.30 81491
197 <5/18> Introduction to quantum simulation of materials 2007.05.15 81835