An X-ray Scattering Study on CDW in Heavily Underdopded YBCO under High Magnetic Field

ORAL

Abstract

While the existence of charge density wave (CDW) in YBa2Cu3O6+x has now been firmly established, where in the phase diagram does it emerge remains an important question. X-ray scattering in the absence of magnetic field, as well as a lower field, suggests that the CDW becomes detectable for the hole concentration p > 0.08. However, these measurements are unlikely to represent the ground state properties because the superconductivity dominates at the low temperature, obscuring the development of the CDW. To resolve this limitation, we perform x-ray scattering at high magnetic field that is comparable to the upper critical field, using x-ray free electron laser with a pulsed magnet. The high magnetic field heavily suppresses YBCO’s superconductivity (SC) at the low temperature; so that we can investigate the existence of CDW at low temperature with minimal influence from the SC. The results and corresponding implications will be discussed in this talk.

–

Presenters

  • Wei-Sheng Lee

    SLAC National Accelerator Laboratory, SLAC - Natl Accelerator Lab

Authors

  • Wei-Sheng Lee

    SLAC National Accelerator Laboratory, SLAC - Natl Accelerator Lab

  • Hoyoung Jang

    SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory

  • Sanghoon Song

    SLAC - Natl Accelerator Lab

  • H. Huang

    SLAC - Natl Accelerator Lab

  • Y.-J. Liu

    SLAC - Natl Accelerator Lab

  • Satoshi Matsuzawa

    Tohoku University

  • H. Yasumura

    Tohoku University

  • Juan Porras

    Max Planck Institute for Solid State Research

  • Matteo Minola

    Max Planck Institute for Solid State Research, Max-Planck-Institut für Festkörperforschung

  • Bernhard Keimer

    Max Planck Institute for Solid State Research, Max-Planck-Institut für Festkörperforschung, Solid-state spectroscopy, Max Planck Institute for Solid-State Research

  • Jerome Hastings

    SLAC - Natl Accelerator Lab

  • Steven Kivelson

    Stanford University, Stanford Univ, Physics, Stanford University

  • Zhi-Xun Shen

    Stanford University, SLAC National Accelerator Laboratory, SLAC - Natl Accelerator Lab, Stanford Univ, SIMIS, Stanford University, Applied Physics, Stanford Univ, Stanford University and SLAC National Accelerator Laboratory, Applied Physics, Stanford University

  • Thomas Devereaux

    Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Stanford Univ, SLAC and Stanford University, SLAC National Accelerator Laboratory, SLAC - Natl Accelerator Lab, Stanford Institute for Materials and Energy Sciences, SLAC National Laboratory, Stanford University, SIMIS, Stanford University, Physics, Stanford University, SLAC National Lab and Stanford University, SIMES, SLAC and Stanford University

  • Chi-Chang Kao

    SLAC - Natl Accelerator Lab

  • H. Nojiri

    Tohoku University

  • D. L. Zhu

    SLAC - Natl Accelerator Lab

  • Jun-Sik Lee

    SSRL/SLAC, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory