Journal Article

FZJ-2021-02914

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Atomically-resolved interlayer charge ordering and its interplay with superconductivity in YBa2Cu3O6.81

Hsu, C.-C. ; Huang, B.-C. ; Schnedler, M.FZJ* ; Lai, M.-Y. ; Wang, Y.-L. ; Dunin-Borkowski, R. E.FZJ* ; Chang, C.-S. ; Lee, T.-K. ; Ebert, P. (Corresponding author)FZJ* ; Chiu, Y.-P. (Corresponding author)

2021
Nature Publishing Group UK [London]

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Please use a persistent id in citations: http://hdl.handle.net/2128/28039  doi:10.1038/s41467-021-24003-0

Abstract: High-temperature superconductive (SC) cuprates exhibit not only a SC phase, but also competing orders, suppressing superconductivity. Charge order (CO) has been recognized as an important competing order, but its microscopic spatial interplay with SC phase as well as the interlayer coupling in CO and SC phases remain elusive, despite being essential for understanding the physical mechanisms of competing orders and hence superconductivity. Here we report the achievement of direct real-space imaging with atomic-scale resolution of cryogenically cleaved YBa2Cu3O6.81 using cross-sectional scanning tunneling microscopy/spectroscopy. CO nanodomains are found embedded in the SC phase with a proximity-like boundary region characterized by mutual suppression of CO and superconductivity. Furthermore, SC coherence as well as CO occur on both CuO chain and plane layers, revealing carrier transport and density of states mixing between layers. The CO antiphase correlation along the c direction suggests a dominance of Coulomb repulsion over Josephson tunneling between adjacent layers.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)
2. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 5351 - Platform for Correlative, In Situ and Operando Characterization (POF4-535) (POF4-535)

Appears in the scientific report 2021

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