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Research Letters in Nanotechnology
Volume 2008, Article ID 734940, 3 pages
http://dx.doi.org/10.1155/2008/734940
Research Letter

Growth of Functional FeTi Clusters Covered with Carbon Layer

1Department of Physics, Fuel Cell Center, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
2Sai-Institute of Physics, Kimashimizu Nagaike 47-1, Kyoto 610-0112, Japan
3KRI, Inc., Kyoto Research Park, 134 Chudoji Minami-machi, Shimogyo-ku, Kyoto 600-8813, Japan

Received 29 July 2008; Accepted 4 November 2008

Academic Editor: Jeffery L. Coffer

Copyright © 2008 Chihiro Kaito et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

FeTi clusters with a diameter of less than 10 nm and covered with a graphitic layer have been preferentially produced in an H 2 gas atmosphere at pressures of 10 and 26.6 kPa by the simultaneous evaporation of Fe and Ti wires from a concave carbon boat. To compare this result with cluster formation in an inert gas atmosphere, the result for an Ar gas pressure of 10 kPa is also discussed. The formation of disordered FeNi clusters predominately took place in an H 2 gas atmosphere.