logo

korean english

게시판

Home > 게시판 > 세미나


Florida State University Luis Balicas 교수님을 초청하여 아래와 같이 세미나를 개최합니다.


학과 구성원 여러분의 많은 참석을 부탁 드립니다


                        


     1. 일시: 2015 4 7(화) 오전 11

  

     2. 장소: 삼성학술정보관 7층 Creative Learning Room

     3. 초청연사: Prof. Luis Balicas  (Florida State University)

     4. 제목: Recent developments in superconductivity at high magnetic fields


     5. Abstract: Here, I will discuss high magnetic field results [1] in the superconducting state of URu2Si2, which was claimed to be a candidate for a chiral d-wave superconductor having a kz(kx+iky) pairing symmetry. Through low temperature torque magnetometry, we show that the diamagnetic signal expected from vortex pinning, crosses over to an enhanced paramagnetic-like response for fields just below Hc2 when the field approaches the ab-plane. We argue that this anomalous response can only be attributed to supercurrents circulating in the opposite sense with respect to the screening supercurrents, and therefore it might correspond to possible evidence for the sought after chiral state. Remarkably, we have seen a similar response also in LiFeAs [2, 3]. For both compounds, only the highest quality single crystals (i.e. lowest residual resistivity) are found to display such an effect, suggesting superconducting states that are very sensitive to disorder.  Finally, we will briefly discuss the properties of new Pd based chalcogenide superconductors displaying extremely high upper critical fields [4, 5].

References
[1] G. Li et al., Phys. Rev. B 88, 134517 (2013).
[2] G. Li et al., Phys. Rev. B 87, 024512 (2013).
[3] B. Zeng et al., Phys. Rev. B 88, 144518 (2013).
[4] Q. Zhang et al., Sci. Rep. 3, 1446 (2013).
[5] Q.R. Zhang et al., Phys. Rev. B 88, 024508 (2013).


번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1079436
446 <3/19> 고자기장 하에서 반도체 양자구조의 광전이 특성 2014.03.13 75113
445 <10/28> Magneto-electric response of multiferroic chiral magnets 2013.10.21 75168
444 <7/12(Tue.) 11:00> Spin-direction-dependent magnetoelastic coupling on MnO, CoO, and NiO file 2016.07.01 75252
443 <10/31> 학부생을 위한 입자물리학및 끈이론 소개 2008.10.27 75279
442 <12/21>나노 광전소자 2006.12.31 75448
441 <Dec. 9(Wed.) 4:30 PM>Direct detection of dark matter at Underground 2015.12.03 75553
440 <1/16> Higgs-to-diphoton rate in type II seesaw models 2013.01.11 75562
439 <12/12> lattice structure in holographic models 2012.12.12 75693
438 <12/12> 나노물리학과 컴퓨터 시뮬레이션 2008.12.08 75765
437 <3/28> Nanoscale Physics related to Resistance Switchings &Its Applications to Resistance RAM 2008.03.24 75767
436 <May.22(Wed.)> Introduction to exotic quantum states in solids 2019.05.15 75949
435 <Sep. 27(Wed.) 4:30 PM> Triboelectric and Piezoelectric Nanogenerators for Self-Powered Electronics 2017.09.20 75967
434 <11/14> 한방의료기기에서 나노소자의 활용 2008.11.11 76070
433 <10/23> Measuring Transfer Reactions with Radioactive Beams 2012.10.15 76133
» <4/7(화)> 특별초청세미나 개최 안내 2015.04.01 76214
431 <May 04(Tue.)>Flat bands and the geometry of Bloch wave function 2021.04.27 76246
430 <4/7> Structure and Dynamics of Complex Networks 2006.04.03 76358
429 <4/21(월) 오후 2시> Optical properties of iron-based conductors and superconductors 2014.04.15 76487
428 <9/7(금)> Kondo Effect in Chiral Orbital Bands 2012.08.31 76510
427 <Nov.4(Wed.)>Progresses in Elucidating the Optoelectronic Properties of Perovskite Semiconductor 2020.10.28 76620