Atomically-resolved interlayer charge ordering and its interplay with superconductivity in YBa₂Cu₃O_6.81.

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 YBa₂Cu₃O_6.81 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 a

SUBMITTER: Hsu CC 

PROVIDER: S-EPMC8222377 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature