NDLI: Stereo-epitaxial growth of single-crystal Ni nanowires and nanoplates from aligned seed crystals

Content Provider	Royal Society of Chemistry (RSC)
Author	Kim, Eungwang Kim, Bongsoo Lee, Sungyul Lee, Hyoban Kang, Taejoon Lee, Jiyoung Fang, Xiaosheng Yoo, Youngdong
Copyright Year	2016
Abstract	Epitaxially grown anisotropic Ni nanostructures are promising building blocks for the development of miniaturized and stereo-integrated data storage kits because they can store multiple magnetic domain walls (DWs). Here, we report stereo-epitaxially grown single-crystalline Ni nanowires (NWs) and nanoplates, and their magnetic properties. Vertical and inclined Ni NWs were grown at the center and edge regions of c-cut sapphire substrates, respectively. Vertical Ni nanoplates were grown on r-cut sapphire substrates. The morphology and growth direction of Ni nanostructures can be steered by seed crystals. Cubic Ni seeds grow into vertical Ni NWs, tetrahedral Ni seeds grow into inclined Ni NWs, and triangular Ni seeds grow into vertical Ni nanoplates. The shapes of the Ni seeds are determined by the interfacial energy between the bottom plane of the seeds and the substrates. The as-synthesized Ni NWs and nanoplates have blocking temperature values greater than 300 K at 500 Oe, verifying that these Ni nanostructures can form large magnetic DWs with high magnetic anisotropy properties. We anticipate that epitaxially grown Ni NWs and nanoplates will be used in various types of 3-dimensional magnetic devices.
Starting Page	10291
Ending Page	10297
Page Count	7
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	8
Issue Number	19
Journal	Nanoscale
DOI	10.1039/c5nr08080k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Anisotropy Magnetic anisotropy Magnetic domain
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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