Resonant soft x-ray scattering and angle-resolved photoemission spectroscopy studies on electron doped cuprates

ORAL

Abstract

As charge density wave (CDW) order has been recently observed in the electron-doped cuprates, the CDW is thought to be a universal feature in high-Tc cuprates. Here we present comprehensive studies on CDW phenomena in an electron-doped cuprates, Nd1.86Ce0.14CuO4 (NCCO). Interestingly, we observed reflections with a wavevector (~1/4, 0) for a CDW order in both annealed (superconducting) and as-grown (non-superconducting) NCCO. We found that ordering behavior of this reflection is quite different than what is found in Y/La-based hold-doped cuprates. Moreover the angle-resolved photoemission spectroscopy (ARPES) results indicate that Fermiology cannot account for the wavevector. These findings are important to understand the nature of CDW correlations in both in hole- and electron-doped cuprate systems. More details will be discussed in this presentation.

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Presenters

  • Hoyoung Jang

    SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory

Authors

  • Hoyoung Jang

    SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory

  • S. Asano

    IMR, Tohoku University

  • M. Fujita

    Institute for Materials Research, Tohoku University, Tohoku Univ, IMR, Tohoku University

  • Makoto Hashimoto

    SLAC, SLAC, Stanford University, SLAC National Laboratory, Stanford University, SLAC - Natl Accelerator Lab, SLAC National Accelerator Laboratory, SSRL, SLAC

  • Donghui Lu

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

  • Clement Burns

    Department of Physics, Western Michigan University

  • Chi-Chang Kao

    SLAC - Natl Accelerator Lab

  • Jun-Sik Lee

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