Solid state amorphization of RE-TM (RE = Ce, Er and TM = Fe, Co) multilayers

M. Matsuura*, R. Petkie, G. Singco, King-Ning Tu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The thin film diffusion couples of rare earth and transition metal (RE-TM) (RE = Ce, Er and Tm = Fe, Co) were prepared by electron beam deposition at water cooled temperature. The solid state amorphization reactions have been confirmed by X-ray diffraction in the as-deposited CeFe, CeCo and ErCo multilayers but not for ErFe. Anomalous fast diffusion was observed in the CeFe and CeCo as-deposited diffusion couples by means of RBS. On the other hand, very little diffusion occurs in the ErFe and ErCo cases. Those results indicate that cerium has a unique property allowing transition metals to diffuse extremely fast. Also, cerium exhibits a special high amorphous formability in the RE-TM diffusion couples while very low for erbium. Amorphous formability of cobalt is also higher than iron.

Original languageEnglish
Pages (from-to)551-554
Number of pages4
JournalMaterials Science and Engineering A
Volume133
Issue numberC
DOIs
StatePublished - 15 Mar 1991

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