Time-Resolved ARPES Study of Ultrafast Dynamics in Cuprate Superconductor Bi2212

ORAL

Abstract

The momentum-dependent ultrafast dynamics in cuprate superconductor Bi2Sr2CaCu2O8 is investigated using ultra high resolution time-resolved angle-resolved photoemission spectroscopy (tr-ARPES). In this talk, we will present our observation and analysis of dynamics of the quasiparticle states in Bi2Sr2CaCu2O8 in nodal and antinodal direction as a function of doping. Work was performed with temporal resolution of 35fs. The consequences of our findings in terms of nodal-antinodal dichotomy will be discussed.

*Support for this work was provided by LDRD program at LANL

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Authors

  • Jianqiao Meng

    • Condensed Matter and Magnet Science, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos NM, 87545, USA

  • Georgi L. Dakovski

    • SLAC National Accelerator Laboratory, Menlo Park, CA 94025-7015, USA

  • Jian-Xin Zhu

    • Physics of Condensed Matter and Complex Systems, Theoretical Division, Los Alamos National Laboratory, Los Alamos NM, 87545, USA

  • Peter S. Riseborough

    • Department of Physics, Temple University - Philadelphia, PA 19122, USA

  • Genda Gu

    • Condensed Matter Physics \& Materials Science, Brookhaven National Laboratory, Upton, NY 11973, USA

  • Steve M. Gilbertson

    • Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos NM, 87545, USA

  • George Rodriguez

    • Center for Integrated Nanotechnologies, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos NM, 87545, USA

  • Tomasz Durakiewicz

    • Condensed Matter and Magnet Science, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos NM, 87545, USA