Probing Charge Accumulation at SrMnO₃/SrTiO₃ Heterointerfaces via Advanced Electron Microscopy and Spectroscopy.

ABSTRACT: The last three decades have seen a growing trend toward studying the interfacial phenomena in complex oxide heterostructures. Of particular concern is the charge distribution at interfaces, which is a crucial factor in controlling the interface transport behavior. However, the study of the charge distribution is very challenging due to its small length scale and the intricate structure and chemistry at interfaces. Furthermore, the underlying origin of the interfacial charge distribution has been rarely studied in-depth and is still poorly understood. Here, by a combination of aberration-corrected scanning transmission electron microscopy (STEM) and spectroscopy techniques, we identify the charge accumulation in the SrMnO₃ (SMO) side of SrMnO₃/SrTiO₃ heteroi

SUBMITTER: Wang H 

PROVIDER: S-EPMC7596774 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature