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Title: Interfaces between hexagonal and cubic oxides and their structure alternatives

Abstract

Multi-layer structure of functional materials often involves the integration of different crystalline phases. The film growth orientation thus frequently exhibits a transformation, owing to multiple possibilities caused by incompatible in-plane structural symmetry. Nevertheless, the detailed mechanism of the transformation has not yet been fully explored. Here we thoroughly probe the heteroepitaxially grown hexagonal zinc oxide (ZnO) films on cubic (001)-magnesium oxide (MgO) substrates using advanced scanning transition electron microscopy, X-ray diffraction and first principles calculations, revealing two distinct interface models of (001) ZnO/(001) MgO and (100) ZnO/(001) MgO. Here we have found that the structure alternatives are controlled thermodynamically by the nucleation, while kinetically by the enhanced Zn adsorption and O diffusion upon the phase transformation. Finally, this work not only provides a guideline for the interface fabrication with distinct crystalline phases but also shows how polar and non-polar hexagonal ZnO films might be manipulated on the same cubic substrate.

Authors:
 [1];  [2]; ORCiD logo [3]; ORCiD logo [3];  [4];  [4]; ORCiD logo [5];  [5];  [5];  [6];  [6];  [5];  [2]
  1. Xiamen Univ., Xiamen (China). Fujian Provincial Key Lab. of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Dept. of Physics; Shenzhen Univ., Shenzhen (China). College of Materials Science and Engineering and Shenzhen Key Lab. of Special Functional Materials
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
  3. Xiamen Univ., Xiamen (China). Fujian Provincial Key Lab. of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Dept. of Physics; Xiamen Univ. Malaysia, Sepang (Malaysia)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
  5. Xiamen Univ., Xiamen (China). Fujian Provincial Key Lab. of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Dept. of Physics
  6. Shenzhen Univ., Shenzhen (China). College of Materials Science and Engineering and Shenzhen Key Lab. of Special Functional Materials
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Natural Science Foundation of China (NNSFC)
OSTI Identifier:
1412654
Report Number(s):
[BNL-114402-2017-JA]
[Journal ID: ISSN 2041-1723; R&D Project: MA015MACA; KC0201010]
Grant/Contract Number:  
[SC0012704; U1332105; 61227009; 91321102]
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
[ Journal Volume: 8; Journal Issue: 1]; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Structural properties; Surfaces, interfaces and thin films; Transmission electron microscopy; ZnO; MgO; interface; transmission electron microscopy; atomic force microscopy

Citation Formats

Zhou, Hua, Wu, Lijun, Wang, Hui-Qiong, Zheng, Jin-Cheng, Zhang, Lihua, Kisslinger, Kim, Li, Yaping, Wang, Zhiqiang, Cheng, Hao, Ke, Shanming, Li, Yu, Kang, Junyong, and Zhu, Yimei. Interfaces between hexagonal and cubic oxides and their structure alternatives. United States: N. p., 2017. Web. doi:10.1038/s41467-017-01655-5.
Zhou, Hua, Wu, Lijun, Wang, Hui-Qiong, Zheng, Jin-Cheng, Zhang, Lihua, Kisslinger, Kim, Li, Yaping, Wang, Zhiqiang, Cheng, Hao, Ke, Shanming, Li, Yu, Kang, Junyong, & Zhu, Yimei. Interfaces between hexagonal and cubic oxides and their structure alternatives. United States. doi:10.1038/s41467-017-01655-5.
Zhou, Hua, Wu, Lijun, Wang, Hui-Qiong, Zheng, Jin-Cheng, Zhang, Lihua, Kisslinger, Kim, Li, Yaping, Wang, Zhiqiang, Cheng, Hao, Ke, Shanming, Li, Yu, Kang, Junyong, and Zhu, Yimei. Tue . "Interfaces between hexagonal and cubic oxides and their structure alternatives". United States. doi:10.1038/s41467-017-01655-5. https://www.osti.gov/servlets/purl/1412654.
@article{osti_1412654,
title = {Interfaces between hexagonal and cubic oxides and their structure alternatives},
author = {Zhou, Hua and Wu, Lijun and Wang, Hui-Qiong and Zheng, Jin-Cheng and Zhang, Lihua and Kisslinger, Kim and Li, Yaping and Wang, Zhiqiang and Cheng, Hao and Ke, Shanming and Li, Yu and Kang, Junyong and Zhu, Yimei},
abstractNote = {Multi-layer structure of functional materials often involves the integration of different crystalline phases. The film growth orientation thus frequently exhibits a transformation, owing to multiple possibilities caused by incompatible in-plane structural symmetry. Nevertheless, the detailed mechanism of the transformation has not yet been fully explored. Here we thoroughly probe the heteroepitaxially grown hexagonal zinc oxide (ZnO) films on cubic (001)-magnesium oxide (MgO) substrates using advanced scanning transition electron microscopy, X-ray diffraction and first principles calculations, revealing two distinct interface models of (001) ZnO/(001) MgO and (100) ZnO/(001) MgO. Here we have found that the structure alternatives are controlled thermodynamically by the nucleation, while kinetically by the enhanced Zn adsorption and O diffusion upon the phase transformation. Finally, this work not only provides a guideline for the interface fabrication with distinct crystalline phases but also shows how polar and non-polar hexagonal ZnO films might be manipulated on the same cubic substrate.},
doi = {10.1038/s41467-017-01655-5},
journal = {Nature Communications},
number = [1],
volume = [8],
place = {United States},
year = {2017},
month = {11}
}

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