Study of the interplay between pseudogap and antiferromagnetic correlations in electron-doped cuprates via TR-ARPES

ORAL

Abstract

In recent years, various angle-resolved photoemission spectroscopy (ARPES) studies focused on electron-doped cuprate superconductors to explore the similarities and differences between the two sides of the cuprates phase diagram. The pseudogap (PG) is a well-known phenomenon in the physics of high-temperature superconductors but despite numerous theoretical and experimental works, the origin of the PG in the cuprates is still under debate. Contrary to the hole-doped counterpart, antiferromagnetic (AF) correlations in the electron-doped side are stronger, offering the unique opportunity to explore the close interplay between AF, superconductivity, PG and other underlying phases. By exploiting time-resolved ARPES, we investigate the transient evolution of the low-energy density of state of the optimally doped Nd2-xCexCuO4 (NCCO, x=0.15). In particular, by studying the temperature-dependence of the PG spectral features, we demonstrate the direct relation between PG and spin correlation length and provide evidence for the primary role of AF correlations in determining the PG in electron-doped cuprates.

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Presenters

  • Marta Zonno

    QMI, University of British Columbia, Department of Physics & Astronomy, University of British Columbia, Quantum Matter Institute, University of British Columbia

Authors

  • Marta Zonno

    QMI, University of British Columbia, Department of Physics & Astronomy, University of British Columbia, Quantum Matter Institute, University of British Columbia

  • Fabio Boschini

    University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Quantum Matter Institute, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Elia Razzoli

    University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Quantum Matter Institute, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Matteo Michiardi

    University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Quantum Matter Institute, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Ryan P Day

    University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Quantum Matter Institute, University of British Columbia, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Berend Zwartsenberg

    Quantum Matter Institute, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Pascal Nigge

    University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Eduardo H Da Silva Neto

    Physics, Univ of California - Davis, Stuart Blussom Quantum Matter Institute, University of British Columbia, University of California, Davis, Department of Physics, University of California Davis

  • Andreas Erb

    Walther-Meissner-Institute for Low Temperature Research

  • Sergey Zhdanovich

    University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Giorgio Levy

    University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Quantum Matter Institute, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Claudio Giannetti

    Mathematics and Physics, Univ. Cattolica Brescia, Universita' Cattolica del Sacro Cuore

  • David J Jones

    University of British Columbia, University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Department of Physics & Astronomy, University of British Columbia

  • Andrea Damascelli

    University of British Columbia, University of British Colombia, QMI, University of British Columbia, Physics and Astronomy, University of British Columbia, Stuart Blussom Quantum Matter Institute, University of British Columbia, Quantum Matter Institute, University of British Columbia, Department of Physics & Astronomy, University of British Columbia