@article{537078de782546dc99a82cb088bab894,
title = "Atomically-resolved interlayer charge ordering and its interplay with superconductivity in YBa2Cu3O6.81",
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.",
author = "Hsu, {Chun Chih} and Huang, {Bo Chao} and Michael Schnedler and Lai, {Ming Yu} and Wang, {Yuh Lin} and Dunin-Borkowski, {Rafal E.} and Chang, {Chia Seng} and Lee, {Ting Kuo} and Philipp Ebert and Chiu, {Ya Ping}",
note = "Funding Information: This work was financially supported by the Ministry of Science and Technology (MOST) of Taiwan (Contract No. MOST 109-2628-M-002-005-MY3, and MOST 109-2622-8-002-003), Ministry of Science and Technology (MOST) and German Academic Exchange Service MOST-DAAD Project-Based Personnel Exchange Program (Contract No. 109-2927-I-002-509 and 57447615), National Taiwan Univ. (Contract No. NTU-109L7848), and the Center of Atomic Initiative for New Materials, National Taiwan Univ., Taipei, Taiwan from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan (108L9008). B.-C.H. and M.-Y.L. acknowledge the financial support from Academia Sinica through the investigator award (AS-IA-107-M03) granted to Prof. Yuh-Lin Wang. Y.-L.W. and Y.-P.C. are grateful to the budget committee of Institute of Atomic and Molecular Sciences and Institute of Physics, Academia Sinica, respectively for jointly supporting the purchase of the LT-STM used in this study. Thanks to TEM team of Ma-tek for preparing TEM samples and providing high quality TEM images. Publisher Copyright: {\textcopyright} 2021, The Author(s).",
year = "2021",
month = dec,
day = "1",
doi = "10.1038/s41467-021-24003-0",
language = "English",
volume = "12",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",
}