a Laboratory of Accelerator-based Atomic and Nuclear Physics, Institute of Modern Physics, Fudan University, Shanghai 200433, China; b Institute of Nuclear and Chemistry, China Academy of Engineering Physics, Chengdu 610003, China
Abstract The diffusion barriers for the single helium atom in 3d transition metals are systematically studied by effective medium theory without any adjustable parameters. In the calculation, the relaxiation effects of lattice are taken into account. The comparison of our calculated results with the available experimental data and other theoretical values shows good agreement.
Received: 06 March 1999
Revised: 07 April 1999
Accepted manuscript online:
PACS:
66.30.Fq
(Self-diffusion in metals, semimetals, and alloys)
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