| Crystal synthesis and effects of epitaxial perovskite manganite underlayer conditions on characteristics of ZnO nanostructured heterostructures. | |
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MedLine Citation:
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PMID: 23392563 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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This study presents the synthesis of high-density aligned wurtzite ZnO nanostructures using thermal evaporation on perovskite (La,Sr)MnO(3)(LSMO) epitaxy to form a heterostructure without the assistance of metallic catalysis. LSMO epitaxial films are RF-sputtered with various crystal qualities to examine the correlation between the interface and electrical characteristics of the heterostructures. The ZnO nanostructures-LSMO epitaxial heterostructures show electrical rectifying behavior without inserting an ultrathin insulating layer at the hetero-interface. Misfit strain, intrinsic strain, and crystal defects are major factors in causing a phase separation in the as-prepared manganite LSMO epitaxial films. The coexistence of a charge-ordered insulating domain and a ferromagnetic metallic domain causes inhomogeneous electrical contact at the ZnO-LSMO heterointerfaces, further deteriorating the junction characteristics. A high-temperature annealing procedure and moderate LSMO epitaxy film thickness are required for the construction of an efficient ZnO nanostructures-LSMO epitaxy junction. |
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Authors:
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Yuan-Chang Liang; Chia-Yen Hu; Hua Zhong; Jyh-Liang Wang |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2013-2-8 |
Journal Detail:
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Title: Nanoscale Volume: - ISSN: 2040-3372 ISO Abbreviation: Nanoscale Publication Date: 2013 Feb |
Date Detail:
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Created Date: 2013-2-8 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101525249 Medline TA: Nanoscale Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Institute of Materials Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan. yuanvictory@gmail.com. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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