Charge-density-wave order takes over antiferromagnetism in Bi2Sr2−x La x CuO6 superconductors

S. Kawasaki, Z. Li, M. Kitahashi, C. T. Lin, P. L. Kuhns, A. P. Reyes and Guo-qing Zheng ()
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S. Kawasaki: Okayama University
Z. Li: Chinese Academy of Sciences, and Beijing National Laboratory for Condensed Matter Physics
M. Kitahashi: Okayama University
C. T. Lin: Max-Planck-Institut fur Festkorperforschung
P. L. Kuhns: National High Magnetic Field Laboratory
A. P. Reyes: National High Magnetic Field Laboratory
Guo-qing Zheng: Okayama University

Nature Communications, 2017, vol. 8, issue 1, 1-7

Abstract: Abstract Superconductivity appears in the cuprates when a spin order is destroyed, while the role of charge is less known. Recently, charge density wave (CDW) was found below the superconducting dome in YBa2Cu3O y when a high magnetic field is applied perpendicular to the CuO2 plane, which was suggested to arise from incipient CDW in the vortex cores that becomes overlapped. Here by 63Cu-nuclear magnetic resonance, we report the discovery of CDW induced by an in-plane field, setting in above the dome in single-layered Bi2Sr2−x La x CuO6. The onset temperature T CDW takes over the antiferromagnetic order temperature T N beyond a critical doping level at which superconductivity starts to emerge, and scales with the pseudogap temperature T*. These results provide important insights into the relationship between spin order, CDW and the pseudogap, and their connections to high-temperature superconductivity.

Date: 2017
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DOI: 10.1038/s41467-017-01465-9

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