Structure of the Mg2Ni switchable mirror: an EXAFS investigation
Creators
- 1. Debye Institute, Condensed Matter and Interfaces, Utrecht University, P.O. Box 80000, 3508 TA Utrecht (Netherlands)
- 2. Debye Institute, Inorganic Chemistry and Catalysis, Utrecht University, P.O. Box 80083, 3508 TA Utrecht (Netherlands)
- 3. Faculty of Sciences, Division of Physics and Astronomy, Vrije Universiteit De Boelelaan 1081, 1081 HV Amsterdam (Netherlands)
- 4. DUBBLE CRG, ESRF, BP 220, 38043 Grenoble Cedex 9 (France)
Description
Hydrogen intercalation changes both the structure and the optical properties of Mg2Ni thin films. The structure of evaporated thin films was investigated in the as-deposited, hydrogenated and dehydrogenated states with extended X-ray absorption fine structure (EXAFS) and X-ray diffraction (XRD). The partially crystalline virgin film becomes completely amorphous upon hydrogenation. After removal of the intercalated hydrogen the film remains amorphous. Hydrogen was detected in different concentrations in the virgin, hydrogenated and dehydrogenated films. Hydrogen loading was confirmed both by a shift of the nickel absorption edge and an increase of the hydrogen content. The intercalated hydrogen in the completely loaded film is located around the nickel atom with a coordination close to four
Additional details
Identifiers
- DOI
- 10.1016/j.matchemphys.2004.09.008;
- PII
- S0254-0584(04)00442-0;
Publishing Information
- Journal Title
- Materials Chemistry and Physics
- Journal Volume
- 91
- Journal Issue
- 1
- Journal Page Range
- p. 1-9
- ISSN
- 0254-0584
- CODEN
- MCHPDR
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37054385
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ABSORPTION; ABSORPTION SPECTROSCOPY; CRYSTAL STRUCTURE; FINE STRUCTURE; HYDROGEN; MAGNESIUM ALLOYS; NICKEL ALLOYS; OPTICAL PROPERTIES; THIN FILMS; X RADIATION; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; ELEMENTS; FILMS; IONIZING RADIATIONS; NONMETALS; PHYSICAL PROPERTIES; RADIATIONS; SCATTERING; SORPTION; SPECTROSCOPY; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.