Study of the hydrogen diffusion in superlattices by grazing angle neutron reflectometry

This paper deals with the possibility of studying H diffusion in a small depth range (≈80 Å) with grazing angle neutron reflectometry. This new optical and nondestructive technique allowed us to follow the evolution of H in small period superlattices with a small annealing temperature. To illustrate...

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Bibliographic Details
Published inPhysics letters. A Vol. 181; no. 3; pp. 245 - 250
Main Authors Mâaza, M., Farnoux, B., Samuel, F.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 11.10.1993
Elsevier Science
Subjects
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties
Physics
Solid surfaces and solid-solid interfaces
Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties)
Neutron spectra
Reflection spectroscopy
Annealing
Titanium hydrides
Refractive index
Superlattices
Nickel
Diffusion
Experimental study
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Summary:This paper deals with the possibility of studying H diffusion in a small depth range (≈80 Å) with grazing angle neutron reflectometry. This new optical and nondestructive technique allowed us to follow the evolution of H in small period superlattices with a small annealing temperature. To illustrate this, a superlattice of 10(NiTiH x ) sputtered on float-glass is studied. Variations in both neutron refractive indices of Ni and TiH x layers, the period and the neutron reflectivity of the stratified medium were observed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(93)90646-H