APS Logo

Unconventional Superconductivity

FOCUS · N21 · ID: 48466

Presentations

  • Magnetic, superconducting, and topological surface states on FeTeSe

    ORAL · Invited

    –

    Publication: Y. Li, N. Zaki, V. O. Garlea, A. T. Savici, D. Fobes, Z. Xu, F. Camino, C. Petrovic, G. Gu, P. D. Johnson, J. M. Tranquada, I. A. Zaliznyak. Nature Materials 20, 1221–1227 (2021).

    Presenters

    • Igor A Zaliznyak

      Oak Ridge National Lab, Oak Ridge National Laboratory, Brookhaven National Laboratory

    Authors

    • Igor A Zaliznyak

      Oak Ridge National Lab, Oak Ridge National Laboratory, Brookhaven National Laboratory

    • Yangmu Li

      Brookhaven National Laboratory

    • Nader Zaki

      Brookhaven National Laboratory

    • Vasile O Garlea

      Oak Ridge National Lab

    • Igor A Zaliznyak

      Oak Ridge National Lab, Oak Ridge National Laboratory, Brookhaven National Laboratory

    • David M Fobes

      Los Alamos National Laboratory

    • Zhijun Xu

      University of Maryland, College Park

    • Fernando E Camino

      Brookhaven National Laboratory

    • Cedomir Petrovic

      Brookhaven National Laboratory

    • Genda Gu

      Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA

    • Peter D Johnson

      Brookhaven National Laboratory

    • John M Tranquada

      Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA, Brookhaven National Laboratory

    View abstract →

  • Signatures of emergent interfacial superconductivity in 45-degree twisted van der Waals Cuprate Superconductors

    ORAL

    –

    Publication: https://arxiv.org/abs/2108.13455<br>Twisted interfaces between stacked van der Waals cuprate crystals enable tunable Josephson coupling between in-plane anisotropic superconducting order parameters. Employing a novel cryogenic assembly technique, we fabricate Josephson junctions with an atomically sharp twisted interface between Bi2Sr2CaCu2O8+x crystals. The Josephson critical current density sensitively depends on the twist angle, reaching the maximum value comparable to that of the intrinsic junctions at small twisting angles, and is suppressed by almost 2 orders of magnitude yet remains finite close to 45 degree twist angle. Through the observation of fractional Shapiro steps and the analysis of Fraunhofer patterns we show that the remaining superconducting coherence near 45 degree is due to the co-tunneling of Cooper pairs, a necessary ingredient for high-temperature topological superconductivity.

    Presenters

    • Alex cui

      Harvard University

    Authors

    • Alex cui

      Harvard University

    • Shu Yang Frank Zhao

      Harvard University

    • Pavel A Volkov

      Rutgers University

    • Jed Pixley

      Rutgers University

    • Nicola Poccia

      IFW Dresden

    • Philip Kim

      Harvard University

    • Genda Gu

      Brookhaven National Laboratory, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA

    • Ruidan Zhong

      Shanghai Jiaotong University

    • Sangmin Lee

      Seoul National University

    • Hyobin Yoo

      Sogang University

    • Jules A Gardener

      Harvard CNS

    • Austin Akey

      Harvard CNS

    • Rebecca Engelke

      Harvard University

    • Yuval Ronen

      Harvard University

    • Marcel Franz

      University of British Columbia

    • Tarun Tummuru

      University of British Columbia

    • Stephan Plugge

      University of British Columbia

    View abstract →

  • Probing the Josephson effect in twisted nodal superconductors

    ORAL

    –

    Publication: https://arxiv.org/abs/2108.13456

    Presenters

    • Jed Pixley

      Rutgers University

    Authors

    • Pavel A Volkov

      Rutgers University

    • Jed Pixley

      Rutgers University

    • Philip Kim

      Harvard University

    • Alex cui

      Harvard University

    • Shu Yang Frank Zhao

      Harvard University

    • Nicola Poccia

      IFW Dresden

    View abstract →

  • A Universal Way to Engineer the Electronic Properties of Hybrid Devices.

    ORAL

    –

    Presenters

    • Guang Yang

      Institute of Physics, Chinese Academy of Sciences

    Authors

    • Guang Yang

      Institute of Physics, Chinese Academy of Sciences

    • Jiayu Shi

      Institute of Physics, Chinese Academy of Sciences

    • Degui Qian

      Institute of Physics, Chinese Academy of Sciences

    • Guoan Li

      Institute of Physics, Chinese Academy of Sciences

    • Michal Nowak

      AGH University of Science and Technology

    • Paweł Wójcik

      AGH University of Science and Technology

    • Erik P. A. M. Bakkers

      Eindhoven University of Technology

    • Jie Shen

      Institute of Physics, Chinese Academy of Sciences

    View abstract →

  • Bound quasiparticle transport along the edges of superfluid <sup>3</sup>He

    ORAL

    –

    Publication: [1] S. Autti et al., Nature Communications 11, 4742 (2020)

    Presenters

    • Samuli Autti

      Lancaster University

    Authors

    • Dmitry Zmeev

      Lancaster Univ

    • Samuli Autti

      Lancaster University

    • Ash Jennings

      Lancaster University

    • Richard Haley

      Lancaster University, Department of Physics, Lancaster University, Bailrigg, Lancaster LA1 4YB, UK

    • George R Pickett

      Lancaster University

    • Malcolm Poole

      Lancaster University

    • Roch Schanen

      Lancaster University

    • Arkady A Soldatov

      Kapitza Institute

    • Viktor Tsepelin

      Lancaster University

    • Jakub Vonka

      Paul Scherrer Institute

    • Vladislav V Zavjalov

      Lancaster University

    View abstract →