Observation of two types of charge-density-wave orders in superconducting La2-xSrxCuO4

J.-J. Wen, H. Huang, S.-J. Lee, H. Jang, J. Knight, Y. S. Lee, M. Fujita, K. M. Suzuki, S. Asano, S. A. Kivelson, C.-C. Kao and J.-S. Lee ()
Additional contact information
J.-J. Wen: SLAC National Accelerator Laboratory
H. Huang: SLAC National Accelerator Laboratory
S.-J. Lee: SLAC National Accelerator Laboratory
H. Jang: SLAC National Accelerator Laboratory
J. Knight: SLAC National Accelerator Laboratory
Y. S. Lee: SLAC National Accelerator Laboratory
M. Fujita: Tohoku University
K. M. Suzuki: Tohoku University
S. Asano: Tohoku University
S. A. Kivelson: Stanford University
C.-C. Kao: SLAC National Accelerator Laboratory
J.-S. Lee: SLAC National Accelerator Laboratory

Nature Communications, 2019, vol. 10, issue 1, 1-6

Abstract: Abstract The discovery of charge- and spin-density-wave (CDW/SDW) orders in superconducting cuprates has altered our perspective on the nature of high-temperature superconductivity (SC). However, it has proven difficult to fully elucidate the relationship between the density wave orders and SC. Here, using resonant soft X-ray scattering, we study the archetypal cuprate La2-xSrxCuO4 (LSCO) over a broad doping range. We reveal the existence of two types of CDW orders in LSCO, namely CDW stripe order and CDW short-range order (SRO). While the CDW-SRO is suppressed by SC, it is partially transformed into the CDW stripe order with developing SDW stripe order near the superconducting Tc. These findings indicate that the stripe orders and SC are inhomogeneously distributed in the superconducting CuO2 planes of LSCO. This further suggests a new perspective on the putative pair-density-wave order that coexists with SC, SDW, and CDW orders.

Date: 2019
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DOI: 10.1038/s41467-019-11167-z

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