TITLE

Composition measurement of the Ni-silicide transient phase by atom probe tomography

AUTHOR(S)
Hoummada, K.; Blum, I.; Mangelinck, D.; Portavoce, A.
PUB. DATE
June 2010
SOURCE
Applied Physics Letters;6/28/2010, Vol. 96 Issue 26, p261904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The transient phase observed during the reaction of a Ni(Pt) alloy with a (001)Si substrate is studied using in situ x-ray diffraction and atom probe tomography microscopy. This transient phase exhibits a diffraction peak at 47°, and is found to have a uniform composition corresponding to Ni0.6Si0.4. During the reaction, it is located between a δ-Ni2Si layer and a thin (nanocrystalline or amorphous) NiSi layer in contact with Si. The Pt atoms are found in the δ-Ni2Si grain boundaries, while they have not been detected in the NiSi layer.
ACCESSION #
51975723

 

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