Double layer formation in Mg-TM switchable mirrors (TM : Ni, Co, Fe)

W. Lohstroh, R.J. Westerwaal, A.C. Lokhorst, J.L.M. van Mechelen, B. Dam, R.P. Griessen

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

The optical properties of Mg-TM (TM: Ni, Co, Fe; Mg:TM ≈ 2) thin films during hydrogenation are investigated using reflection and transmission measurements. Mg-Ni and Mg-Co show an unusual behavior upon exposure to hydrogen. The nucleation of the hydride starts at the film substrate interface and not - as intuitively expected - at the Pd covered top side of the film. Consequently, a double layer structure is formed. Reflection measurements are used to identify the loading behavior as the double layering yields to an remarkable optical black state at intermediate hydrogen concentrations. Photometric measurements on samples loaded at H
Original languageEnglish
Pages (from-to)490-493
JournalJournal of Alloys and Compounds
Volume404-406
DOIs
Publication statusPublished - 2005

Bibliographical note

Times Cited: 8 9th International Symposium on Metal-Hydrogen Systems, Fundamentals and Applications SEP 05-10, 2004 AGH Univ Sci & Technol, Fac Phys & Comp Sci, Cracow, POLAND

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