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Phase transitions of Cu.sub.3+x./sub.Si observed by temperature-dependent x-ray powder diffraction
- 1.0482845 - FZÚ 2018 RIV GB eng J - Journal Article
Correa, Cinthia Antunes - Poupon, Morgane - Kopeček, Jaromír - Král, Robert - Zemenová, Petra - Lecourt, J. - Barrier, N. - Brázda, Petr - Klementová, Mariana - Palatinus, Lukáš
Phase transitions of Cu3+xSi observed by temperature-dependent x-ray powder diffraction.
Intermetallics. Roč. 91, Dec (2017), s. 129-139. ISSN 0966-9795. E-ISSN 1879-0216
R&D Projects: GA ČR GC15-08842J
Institutional support: RVO:68378271
Keywords : X-ray powder diffraction * differential scanning calorimetry * phase transitions * Cu3+xSi
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.420, year: 2017
Phases in the system Cu3+xSi were analyzed by temperature-dependent x-ray powder diffraction and differential scanning calorimetry on samples with nominal composition Cu74Si26 and Cu78Si22 in the temperature range between 30 °C and 700 °C. Contrary to previous works, which report three phases in the system, we identified six distinct phases, labeled, in order of increasing temperature, η‴, η″, η′, η3, η2, η1. All these phases can be indexed with a similar basic unit cell. However, each phase has a different superstructure or modulation vectors.
Permanent Link: http://hdl.handle.net/11104/0278239
Number of the records: 1