Atomic and electronic structures of the interface and twin boundaries in epitaxial CuO films on a ZnO substrate

Yanan Zhao; Wandong Xing; Xingqiao Ma; Rong Yu; Fanyan Meng

doi:10.1016/j.mtcomm.2022.105022

Atomic and electronic structures of the interface and twin boundaries in epitaxial CuO films on a ZnO substrate

Yanan Zhao
, Wandong Xing^*
, Xingqiao Ma
, Rong Yu
, Fanyan Meng

^*Corresponding author for this work

University of Science and Technology Beijing
Fuzhou University
Tsinghua University

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Interfacial engineering in oxide heterostructures has evolved into a thriving research field due to the presence of diverse novel physical phenomena. In this study, we grew epitaxial CuO thin films on a ZnO(0001) single crystal substrate, where the orientation relationship was CuO [110] (11̅1̅) || ZnO [112̅0] (0001). The atomic, magnetic, and electronic structures of the CuO/ZnO interface and the CuO(001) twin boundary were studied by combining aberration-corrected scanning transmission electron microscopy and first-principles calculations. The CuO/ZnO interface was found to be fully coherent and metallic, making it possible to form two-dimensional electron gas between the two semiconductors.

Original language	English
Article number	105022
Journal	Materials Today Communications
Volume	33
DOIs	https://doi.org/10.1016/j.mtcomm.2022.105022
State	Published - Dec 2022
Externally published	Yes

Keywords

Copper oxide
First-principles calculations
Interface
Scanning transmission electron microscopy
Twin boundary

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10.1016/j.mtcomm.2022.105022

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title = "Atomic and electronic structures of the interface and twin boundaries in epitaxial CuO films on a ZnO substrate",

abstract = "Interfacial engineering in oxide heterostructures has evolved into a thriving research field due to the presence of diverse novel physical phenomena. In this study, we grew epitaxial CuO thin films on a ZnO(0001) single crystal substrate, where the orientation relationship was CuO [110] (11̅1̅) || ZnO [112̅0] (0001). The atomic, magnetic, and electronic structures of the CuO/ZnO interface and the CuO(001) twin boundary were studied by combining aberration-corrected scanning transmission electron microscopy and first-principles calculations. The CuO/ZnO interface was found to be fully coherent and metallic, making it possible to form two-dimensional electron gas between the two semiconductors.",

keywords = "Copper oxide, First-principles calculations, Interface, Scanning transmission electron microscopy, Twin boundary",

author = "Yanan Zhao and Wandong Xing and Xingqiao Ma and Rong Yu and Fanyan Meng",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = dec,

doi = "10.1016/j.mtcomm.2022.105022",

language = "英语",

volume = "33",

journal = "Materials Today Communications",

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}

TY - JOUR

T1 - Atomic and electronic structures of the interface and twin boundaries in epitaxial CuO films on a ZnO substrate

AU - Zhao, Yanan

AU - Xing, Wandong

AU - Ma, Xingqiao

AU - Yu, Rong

AU - Meng, Fanyan

PY - 2022/12

Y1 - 2022/12

N2 - Interfacial engineering in oxide heterostructures has evolved into a thriving research field due to the presence of diverse novel physical phenomena. In this study, we grew epitaxial CuO thin films on a ZnO(0001) single crystal substrate, where the orientation relationship was CuO [110] (11̅1̅) || ZnO [112̅0] (0001). The atomic, magnetic, and electronic structures of the CuO/ZnO interface and the CuO(001) twin boundary were studied by combining aberration-corrected scanning transmission electron microscopy and first-principles calculations. The CuO/ZnO interface was found to be fully coherent and metallic, making it possible to form two-dimensional electron gas between the two semiconductors.

AB - Interfacial engineering in oxide heterostructures has evolved into a thriving research field due to the presence of diverse novel physical phenomena. In this study, we grew epitaxial CuO thin films on a ZnO(0001) single crystal substrate, where the orientation relationship was CuO [110] (11̅1̅) || ZnO [112̅0] (0001). The atomic, magnetic, and electronic structures of the CuO/ZnO interface and the CuO(001) twin boundary were studied by combining aberration-corrected scanning transmission electron microscopy and first-principles calculations. The CuO/ZnO interface was found to be fully coherent and metallic, making it possible to form two-dimensional electron gas between the two semiconductors.

KW - Copper oxide

KW - First-principles calculations

KW - Interface

KW - Scanning transmission electron microscopy

KW - Twin boundary

UR - https://www.scopus.com/pages/publications/85142683122

U2 - 10.1016/j.mtcomm.2022.105022

DO - 10.1016/j.mtcomm.2022.105022

M3 - 文章

AN - SCOPUS:85142683122

SN - 2352-4928

VL - 33

JO - Materials Today Communications

JF - Materials Today Communications

M1 - 105022

ER -

Atomic and electronic structures of the interface and twin boundaries in epitaxial CuO films on a ZnO substrate

Abstract

Keywords

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