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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.43  No.4 (2002)  >  pp.646-649

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Generation of Nanosized Structures on Ni and Fe Surfaces by Electron Irradiation

Keisuke Niwase1) and Hiroaki Abe2)
1) Department of Physics, Hyogo University of Teacher Education
2) Japan Atomic Energy Research Institute-Takasaki

We report a new type of self-organized nanostructure for pure Ni and Fe thin foils irradiated with 400 keV electrons. Nanostructure develops at the electron exit surface of the foils. For Ni(001) irradiated along [001] direction at 105 K nanogrooves extend along [100] and [010] in the outer area of the beam, but the pattern differs from those near the beam center. For [011] irradiation, nanogrooves extend mainly along [100] direction and nanowires are finally formed. For Fe(111) irradiated along [111] at 300 K nanoholes are generated in the initial stage and then develop to a pattern of nanogrooves. The nanostructure is rather stable at temperatures lower than 823 K, although the evaporation from the specimen surface occurs.

nickel, iron, electron irradiation, transmission electron microscopy, self-organization, nanostructure

Received: October 22, 2001
Accepted: December 13, 2001 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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