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 1090807
698 <Dec. 9(Fri.)>Confirming Topological Materials by ARPES 2022.12.02 7
697 <Dec. 20(Tue.)>Studying TeV Gamma-Ray Microquasars with the HAWC Observatory 2022.12.01 20
696 <Nov. 21(Mon.)> Strong magneto-elastic coupling observed in ultrafast lattice dynamics of SrRuO3 based superlattices 2022.11.15 36
695 <Nov. 23(Wed.)> 단백질 구조예측과 알파폴드의 물리학 2022.11.17 46
694 <Nov. 16(Wed.)> 원자핵의 존재 한계를 찾아서 2022.11.11 47
693 <Nov. 11(Fri.)> On the origin of CDW in two-dimensional materials 2022.11.04 88
692 <Nov. 11(Fri.)> Nonvanishing anomalous Hall effect in Mn3Al- compensated ferrimagnetic Heusler compound 2022.11.08 93
691 <Nov. 2(Wed.)> The latest from quantum Hall effect in graphene family 2022.10.27 140
690 <Oct. 26(Wed.)>Atomic-scale observation of structural phase transition of strontium ferrite 2022.10.22 159
689 <Oct. 5(Wed.)>“사라진 중성미자를 찾아서” 2022.09.29 225
688 <Sep. 21(Wed.)>Dynamics and thermodynamics of bimolecular reactions at aqueous-nonaqueous interfaces 2022.09.15 304
687 <Nov. 9(Wed.)> 천체와 우주의 진화에서 보는 원소의 기원 2022.11.02 402
686 <Sep. 14(Wed.)>The Next Generation of Photonic Sources – Light-Emitting Devices 2022.09.08 532
685 <Sep. 7(Wed.)>Flavor of particles, as a key for New physics 2022.09.01 554
684 <Oct. 12(Wed.)>Neurodegenerative Diseases from the Chemical Force Point of View 2022.10.05 1010
683 2022학년도 2학기 콜로퀴움 일정 2022.06.22 1686
682 <May 4(Wed.)>Recent progress in the study of topological phases of matter 2022.04.27 1769
681 <May 18(Wed.)>Magnetoresistance and Hall effects of Fe5Sn3 single crystals 2022.05.12 1776
680 <Apr. 20(Wed.)> 반도체 공정용 플라즈마 물리 2022.04.14 1807
679 <Apr. 27(Wed.)> I) A few first questions by me. II) ‘Topotactic resistance switching RAM’의 최초 발견 2022.04.20 1815