logo

korean english

게시판

Home > 게시판 > 세미나

적외선분광물성연구실에서 독일 Universität Stuttgart의 노슬기 박사님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁 드립니다.

===========================================================================

Date/time: 2020. 2. 17 (Mon.) 14:00

 

Place: 물리학과 세미나실(31355)

 

Speaker: 노슬기 박사님 (Physikalisches Institut, Universität Stuttgart, Germany)

 

Title: Magneto-optical study of the Dirac semimetal Cd3As2 in Voigt geometry

 

Abstract: The three-dimensional Dirac semimetals possess Dirac points, which can be considered as a superposition of two Weyl points in reciprocal space. Under a magnetic field, the spin degeneracy can be lifted and a pair of Weyl points with opposite chiralities connected by a zeroth Landau level appears, enabling the charge transfer between the two Weyl points- the so-called chiral pumping effect. In this study, Cd3As2 was investigated by optical spectroscopy under external static magnetic field, B. The Voigt geometry was employed to parallelize the electric field of incident light, E, and the static magnetic field. In the E perpendicular to B configuration, we observed a pronounced Voigt resonance due to the splitting of the plasma edge. In the E // B geometry, decrease of the Drude spectral weight was detected which can be interpreted as a transfer of spectral weight from the broad normal Drude to a sharp chiral pumping channel. In the talk, we will discuss the possible relation between this effect and our observations in more detail.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1056348
276 <8/1(Sat.)> Recent Advances in Deep Learning 2020.07.29 30481
» <2/17(Mon.)> Magneto-optical study of the Dirac semimetal Cd3As2 in Voigt geometry 2020.02.11 77775
274 <12/17(Tue.)> Nuclear spectroscopy with low energy reaction thermal neutrons in ILL 2019.12.17 63875
273 <12/10(Tue.)> Investigating dark matter signals at neutrino telescopes 2019.12.06 81957
272 <12/6(Fri.)>topological phase transitions in Kitaev quantum spin liquids. 2019.12.04 69752
271 <10/22(Tue.)>To p or not to p? – 17O NMR of Sr2RuO4 under strain file 2019.10.17 85264
270 <10/1(Tue.) Mini-Workshop on BSM Physics with Neutrino Detectors 2019.09.30 70529
269 <9/26(Thu.) 4:30 pm ~ > Neutrino Physics and Dark Matter search in IBS 2019.09.24 97346
268 <9/24(Tue) 4:00 pm ~ > Structure Formation with Two Periods of Inflation: Beyond plain LCDM 2019.09.17 48264
267 <9/17(Tue) 4:00 pm ~ >Dynamics of multiple-Q spin textures and its effect on electronic state 2019.09.10 61528
266 <9/2(Mon) 15:00 ~ >Status of the KM3NeT Deep Sea Neutrino Telescope 2019.08.26 72267
265 <8/30(Fri) 16:00 ~ >Structures of light neutron-rich nuclei, 17,19C 2019.08.22 78627
264 <8/26(Mon) 14:00 ~ >Constructing viable models of bouncing scenarios 2019.08.20 54901
263 <8/19(Mon) 13:30 ~ >Detection of cosmic rays in the PeV to EeV energy range file 2019.08.16 82441
262 <8/14(Wed.)>3D-strain induced superconductivity in La2CuO4+δ using a simple vertically aligned nanocomposite approach 2019.08.13 63981
261 <8/19(Mon) 14:00 ~ >Exploring topological matter in an atomic quantum simulator file 2019.07.26 73588
260 <5/16(Thu.) 14:00 ~ >The Chiral anomaly without Landau levels 2019.05.08 111545
259 <3/11(Mon) 10:30 am ~ >Probing Dark Matter at LIGO and Beyond 2019.03.04 68617
258 <2/8(Fri) 11:0 am ~ >Intertwined states in the pure and Nd-doped heavy fermion superconductor CeCoIn5 2019.02.08 85232
257 <2/8(Fri) 2:00pm ~ > 5d SCFTs and Type IIB 5-brane webs 2019.02.01 52489