Probing the symmetry of the pseudogap in cuprates superconductors with Angular Resolved Photoemission Spectroscopy (ARPES)

ORAL

Abstract

There is still no consensus on the origins of the pseudogap in cuprate superconductors; recent studies have shown that it is probably not a preformed cooper pair state, but a completely different state that competes with superconductivity. Some of the possible different states include a charge density state where electrons scatter between a Q-vector connecting the nested bands close to ($\pi $,0) or a spin density state that is derived from the ($\pi $,$\pi )$ Q-vector. The difference between the two, or other exotic states, might be ascertained by looking at the symmetry of the pseudogap as a function of momentum space. We use Angular Resolved Photoemission Spectroscopy (ARPES) to probe this symmetry or lack thereof in cuprates.

*Contract No. DE-AC02-07CH11358

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Authors

  • Ari D. Palczewski

    • Ames Laboratory and Department of Physics and Astronomy, Iowa State University
    • Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA

  • Takeshi Kondo

    • Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA

  • Adam Kaminski

    • Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, USA

  • J.S. Wen

    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA

  • G.Z.J. Xu

    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA

  • G. Gu

    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA