korean english


Home > 게시판 > 세미나

고체전자구조계산연구실에서 서울대학교 물리학과 안준영 박사과정생을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁드립니다.

○ 일시: 2018년 8월 1일(수) 오후 4:00

○ 장소: 물리학과 세미나실 (31355호)

○ 연사: Junyeong Ahn  (Center for Theoretical Physics, Seoul National University)

○ Title: Band Topology in Nodal Line Semimetals with Z2 Monopole Charges

○ Abstract:  Since the discovery of topological insulators and semimetals, there have been many efforts to classify and characterize topological phases of matters. In recent years, three concepts have emerged to become new trends in this direction: fragile topology, higher-order topology, and gap-closing objects (nodes) with multiple topological charges. In this seminar, I will talk about those new concepts based on my recent work on nodal line semimetals hosting nodal lines with two topological charges: one is the well-known pi Berry phase, and the other is the Z2 monopole charge. New analytic methods that I developed for calculating Z2 monopole charges allow systematic studies on this exotic topological charge, which have been difficult up to now. In addition to the theoretical analysis, I will also present a possible material realization based on my colleagues’ first-principles calculations.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1089282
496 <7/14> Calculating the partition function of N=2 Gauge theories on $S^3$ and AdS/CFT correspondence 2011.07.12 100402
495 <4/19> Nuclear Reaction Theories 2011.04.14 100333
494 <10/10>Self-reconfigurable robots 2008.10.07 100156
493 <10/9> Smearing effect of membrane in plane-wave matrix model 2009.10.05 99956
492 <5/16> superconformal index with line operators and domain walls 2012.05.14 99949
491 <May.16(Wed.) 4:30 PM> Single crystal growth of metal film and metal oxide film on different substrates and their various applications 2018.05.09 99839
490 <10/16> SPM Study of CVD Graphene on h-BN Film 2013.10.04 99820
489 2007학년도 2학기 콜로키엄 schedule 안내 2007.09.27 99796
488 <7월27일>Correlated topological phases in 3D complex oxides via Green's functions 2012.07.27 99715
487 <11/27> 중성자로 보는 작은 세상 속 큰 물리 2009.11.24 99625
486 <5/3> APOLLO Program: Understanding Neutron-Rich Nuclei for r-Process Nucleosynthesis 2012.05.03 99411
485 <9/1> 원자핵 자기공명(Nuclear Magnetic Resonance) 해설 - 원자선에서 영상까지 2010.08.30 99193
484 <10/8 (월)>물리학과 특별세미나 개최 안내 2012.10.05 98979
483 <12/14> Breakup-Fusion and Knockout-Fusion Approach to Pre-Equilibrium Processes 2009.12.11 98548
482 <3/9> Understanding the Nature of Metal-Insulator Transition in a Single Crystalline VO2 nanowires 2011.03.04 98216
481 <May.9(Wed.) 4:30 PM> "How gold was produced in the universe?" 2018.05.02 98140
480 <11/26> The Carbon New Age 2010.11.18 97151
479 <4/22> How Many is Different? Ideal Bose gas revisited 2011.04.22 97050
478 2016학년도 2학기 콜로퀴움 일정 2016.08.02 97023
477 <11/21> 복잡 산화물 이종접합 및 다강체 연구(Complex oxide heterostructures and multiferroics) 2012.11.15 96938