Growth, Thermal Stability and Magnetism of Self-Aligned Metal Nanoparticles
Date Issued
2005
Date
2005
Author(s)
Huang, Po-Chung
DOI
zh-TW
Abstract
We present metal nanoparticle grown by vapor deposition over a single-crystalline Al2O3 layers on NiAl(100) with excellences including: well-ordered alignment, uniform size distribution, and high thermal stability. We attribute the excellences to peculiar one-dimensional long stripes with ~ 4 nm interdistance on the surface of the ultrathin Al2O3 template. For the comparism, low temperature, room temperature and high temperature growth of nanoparticles are performed. Besides, the thermal stability and the magnetic properties with respect to different deposition amount are also characterized. This novel nanostructure may open the door to numerous applications, such as catalysis and nanostorage, where large area well-ordered nanoparticles are desired.
Subjects
鈷
錳
金屬
奈米顆粒
奈米團簇
奈米磁學
磁性
有序
氧化鋁
鎳鋁
成長
熱穩定度
Co
Mn
metal
nano particle
nano cluster
nano magnetism
ordering
align
aluminum
NiAl
growth
thermal stability
Type
thesis
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