Controlled growth of Co nanoparticle assembly on nanostructured template Al{sub 2}O{sub 3}/NiAl(100)

Journal Article · Mon Oct 09 00:00:00 EDT 2006 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2358926· OSTI ID:20860996

Lin, W -C; Wong, S -S; Huang, P -C; Wu, C -B; Xu, B -R; Chiang, C -T; Yen, H -Y; Lin, M -T ^[1]

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1. Department of Physics, National Taiwan University, 10617 Taipei, Taiwan (China) and Institute of Atomic and Molecular Sciences, Academia Sinica, 10617 Taipei, Taiwan (China)

Based on the systematic studies of the growth temperature, deposition rate, and annealing effects, the control of Co nanoparticle density, size, and alignment is demonstrated to be feasible on a nanostructured template Al{sub 2}O{sub 3}/NiAl(100). At 140-170 K, a slow deposition rate (0.027 ML/min) promises both the linear alignment and the high particle density. 1.5 ML Co nanoparticle assembly sustains the density of {approx}260/10{sup 4} nm{sup 2} even after 800-1090 K annealing. This study also indicates the possibilities of the controlled growth for nanoparticles of different materials.

• OSTI ID: 20860996
• Journal Information: Applied Physics Letters, Vol. 89, Issue 15; Other Information: DOI: 10.1063/1.2358926; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ALUMINIUM OXIDES
ANNEALING
BINARY ALLOY SYSTEMS
COBALT
CRYSTAL GROWTH
DENSITY
DEPOSITION
NANOSTRUCTURES
NICKEL ALLOYS
PARTICLE SIZE
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K