Amorphous to crystalline transition in Dy-Fe thin films

The crystallization of vacuum-deposited amorphous Dy--Fe thin films was studied by transmission electron microscopy and electron diffraction. The effects of thickness, deposition rate and substrate temperature on the crystallization process have been investigated. The results show that the crystalli...

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Bibliographic Details
Published in:Applied Physics A Solids and Surfaces 1986-08, Vol.40 (4), p.241-245
Main Author: RAHMAN KHAN, M.S
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Metals, semimetals and alloys
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
Specific materials
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Summary:The crystallization of vacuum-deposited amorphous Dy--Fe thin films was studied by transmission electron microscopy and electron diffraction. The effects of thickness, deposition rate and substrate temperature on the crystallization process have been investigated. The results show that the crystallization thickness d sub c decreases with increasing deposition rate and substrate temperature. The number density of Dy--Fe islands was found to be almost constant at (4-5) x 10 exp 11 cm exp --2 in the thickness range 20 A < d < 50 A. The number density decreases with increase in d sub c . 14 ref.--AA
ISSN:0721-7250
1432-0630
DOI:10.1007/BF00616601