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- Title
Simultaneous nanocalorimetry and fast XRD measurements to study the silicide formation in Pd/a-Si bilayers.
- Authors
Molina-Ruiz, Manel; Ferrando-Villalba, Pablo; Rodríguez-Tinoco, Cristian; Garcia, Gemma; Rodríguez-Viejo, Javier; Peral, Inma; Lopeandía, Aitor F.
- Abstract
The use of a membrane-based chip nanocalorimeter in a powder diffraction beamline is described. Simultaneous wide-angle X-ray scattering and scanning nanocalorimetric measurements are performed on a thin-film stack of palladium/amorphous silicon (Pd/a-Si) at heating rates from 0.1 to 10 K s−1. The nanocalorimeter works under a power-compensation scheme previously developed by the authors. Kinetic and structural information of the consumed and created phases can be obtained from the combined techniques. The formation of Pd2Si produces a broad calorimetric peak that contains overlapping individual processes. It is shown that Pd consumption precedes the formation of the crystalline Pd2Si phase and that the crystallite size depends on the heating rate of the experiment.
- Subjects
X-ray diffraction; X-ray scattering; CALORIMETRY; THIN films spectra; AMORPHOUS silicon; CRYSTALS spectra
- Publication
Journal of Synchrotron Radiation, 2015, Vol 22, Issue 3, p717
- ISSN
0909-0495
- Publication type
Article
- DOI
10.1107/S1600577515004683