korean english


Home > 게시판 > 세미나

아래와 같이 세미나를 개최하오니 많이 참석해 주시기 바랍니다. 아 래 제목: NQR/NMR study on a single crystal of LiFeAs 연사: 백 승 호 박사 (Leipniz Institute, IFW-Dresden) 일시: 2010년 7월 28일(수) 오후 2:00 장소: 물리학과 세미나실 (31355호실) 초록: I present the results of NMR/NQR study in a stoichiometric Fe-based pnictide, LiFeAs. LiFeAs shows the superconductivity at 18 K without chemical doping or pressure unlike other pnictides. The absence of the magnetism in this compound may raise a question about the seemingly intimate relationship between the magnetism and the superconductivity. In order to study the superconductivity and its origin in the microscopic level, we performed NMR and NQR measurements. Our NQR spectra in zero field and NMR spectra at 7 T exhibit narrow linewidths, supporting high-quality single crystal which allows the precise measurements of the Knight shift or the spin susceptibility as a function of temperature and angle. Together with the spin-lattice relaxation rates by both NQR and NMR, I will discuss the unusual spin states both in the normal and in the superconducting states. The discussion will be given in the general context of iron pnictide superconductors. 86749462238674946223
번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1078610
684 2019학년도 2학기 콜로퀴움 일정 2019.07.17 426664
683 <12/3> Magnetic couplings, optical spectra, and spin-orbit exciton in 5d Mott insulator Sr2IrO4 2012.11.26 401444
682 <Mar.3(Wed.)>Scaling laws in Natural Language Processing 2021.02.25 343571
681 2017학년도 1학기 콜로퀴움 일정 2017.01.05 305279
680 <10/25> Wave properties of dipole-exchange spin waves in confined magnetic thin films 2006.10.25 295660
679 <5/16> 물리학자가 바라 본 단백질: 왜, 어떻게 연구하는가? 2012.05.10 268678
678 <6/11> Advanced Physiological Optics and Its Ophthalmic Applications 2014.05.28 258144
677 2020학년도 1학기 콜로퀴움 일정 2020.01.31 254652
676 BK 석학초청 특별세미나 - Frustration and dimensional reduction in multi-orbital systems 2011.10.28 252748
675 <3/14>Adaptive Optics for the Human Eye and Ophthalmic Applications 2008.03.12 248055
674 <6/17> Oscillating Fuzzy Sphere and M5/anti M5 configurations in ABJM model 2009.06.16 246306
673 <12/21> Special Seminar by Professor Ilya Vekhter 2010.11.30 243774
672 <8/30(Wed.)10:30>​Technology convergence and applications of Large-Area Electronics, e-Textiles, bio-sensors and bio-electronics 2017.08.29 243430
671 <11/6> Graphene plasmon and Plasmonics 2013.10.31 240535
670 <June.12(Wed.)> Ribocomputing: Cellular Logic Computation using RNA Devices file 2019.06.07 237969
669 <Jan.14(Thu.)>Oxygen sponge effects for epitaxial manganite thin film design 2021.01.11 235314
668 <11/5(화)> 특별세미나 개최 안내 2013.11.01 230081
667 <5/16(토)> 세미나 개최 안내 2015.05.18 216752
666 <Sep. 23(Wed.) 4:30 PM>Grain boundary effect in Metal : A journey of discovery from crystal to thin films without grain boundaries 2015.09.16 208384