2023
DOI: 10.1002/adma.202301021
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Visualizing the Atomic Configuration of Carbonate Groups  in a (Cu,C)Ba2Ca3Cu4O11+δ Superconductor

Abstract: Carbonates (CO3 2− ) have always been known as impurities to degrade the superconductivity in cuprate high-Tc superconductors. Herein, the atomic arrangement of carbonates is directly visualized in (Cu,C)Ba 2 Ca 3 Cu 4 O 11+𝜹 via integrated differential phase contrast (iDPC) combined with state-of-the-art scanning transmission electron microscopy. The carbon atoms replace Cu atoms in the charge-reservoir layers, contributing to the formation of carbonates through strong orbital hybridization with the surround… Show more

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Cited by 5 publications
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