logo

korean english

게시판

Home > 게시판 > 세미나

양자물질초전도연구실에서 스위스 PSI에 재직하는 Kenzelmann 교수님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁드립니다.




○ 일시: 2018년 3월 2일(금) 오전 11:00

○ 장소: 7th floor in Samsung Library

○ 연사: Prof. Michel Kenzelmann from Paul Scherrer Institut (Swiss)

○ Title: Evolving magnetic interactions near a Kondo breakdown




○ Abstract: Exchange interactions in heavy-fermion materials can trigger complex magnetic phases that
arise from localized or itinerant electrons. It is an open question how magnetic order is
affected when the Fermi surface topology is altered upon hybridization of local electronic
states with the conduction band. Here we study the evolution of magnetic order in the series
Nd1−xCexCoIn5 that features a Kondo breakdown within an antiferromagnetic phase. We
find a transition between two distinct magnetic phases that is detached from the emergence
of heavy-bands. This demonstrates that the magnetism and the Kondo coupling are governed by
different energy scales, in complete agreement with theory that predicts two separate
critical points. Close to the magnetic critical point, however, we find that the magnetic
structure changes symmetry. Our results demonstrate that the magnetic interactions change with
increasing electronic itineracy, and that theories need to include magnetic interactions that
evolve with the size of the Fermi surface.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1079570
526 <9/24(수)> Design Principles of Cellular Networks 2014.09.18 66928
525 <9/11(목)> The effects of dark matter elastic scattering on the cosmological signals 2014.09.01 66959
524 <March.24(Thu) 14:00> A new boson and muon g-2 2016.03.17 67075
523 <10/1(수)> 초전도 양자컴퓨터 - Superconducting qubit and circuit QED 2014.09.26 67082
522 <4/3> 내 안의 파장을 바꿔라! 2013.03.29 67192
521 <12/21(금)> Generic quantum spin ice 2012.12.03 67384
520 <3/22> 석학초청 특별강연 – Pyeongyang Advances Its Nuclear Program 2012.03.07 67394
519 <12/11> Is Nature Natural? 2013.12.05 67469
518 <May.1(Wed.)> Introduction of AMS Application 2019.04.24 67472
517 <11/14> Next Generation LED 2012.11.08 67809
516 <6/24(Fri.) 1:30pm>Emergent geometry from field theory: Wilson's renormalization group revisited 2016.06.20 68019
515 <10/24> Dung-hai Lee 교수와의 간담회 2012.10.23 68245
514 <8/29(토)> 세미나 개최 안내 2015.09.01 68269
513 <3/13> Quantum computing using solid state nano-devices 2013.03.08 68296
512 <6/10(수) 오후4:30분> Closing in on the Axion Dark Matter hypothesis 2015.06.03 68367
511 <3/14> Proto-neutron star 2012.03.08 68402
510 <Oct.2(Wed.)> Fundamental physics with high-energy atmospheric and cosmic neutrinos today and in the future 2019.09.26 68566
509 <May. 11(Wed.) 4:30 PM> In-situ x-ray studies of functional oxides for energy systems 2016.05.23 68570
508 <12/10(수)> Magnetic Resonance Imaging: What is relevant to physics 2014.12.04 68808
507 <9/17(수)> Reshaping Micro/Nanophotonics by Programmable Soft-Matter 2014.09.15 68961