Simultaneous nanocalorimetry and fast XRD measurements to study the silicide formation in Pd/a-Si bilayers

Manel Molina-Ruiz, Pablo Ferrando-Villalba, Cristian Rodríguez-Tinoco, Gemma Garcia, Javier Rodríguez-Viejo, Inma Peral, Aitor F. Lopeandía

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)

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 Ks-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.

Original languageEnglish
Pages (from-to)717-722
Number of pages6
JournalJournal of Synchrotron Radiation
Volume22
DOIs
Publication statusPublished - 1 May 2015

Keywords

  • WAXS Special issue on X-ray Free-Electron Lasers
  • nanocalorimetry
  • thin-film stack

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