Structural and dynamical properties of a new family of solid solutions: BaMn1-xZnxF4

H. N. Bordallo*, R. Almairac, A. Bulou, J. Nouet

*Corresponding author af dette arbejde

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Abstract

The new solid solutions BaMn1-xZnxF4 have been investigated by different experimental methods in the temperature range 10 K-300 K. X-ray and calorimetric measurements show that the incommensurate phase characteristic of BaMnF4 is also observed for x ≤ 0.25. Raman spectra were obtained for BaMn0.5Zn0.5F4 and BaMn0.25Zn0.75F4. Two low-frequency, temperature-dependent bands were observed over the whole temperature range investigated. These results are discussed in connection with structural disorder and the presence of precursor effects of an incommensurate phase transition.

OriginalsprogEngelsk
TidsskriftJournal of Physics Condensed Matter
Vol/bind8
Udgave nummer27
Sider (fra-til)4993-5005
Antal sider13
ISSN0953-8984
DOI
StatusUdgivet - 1 jul. 1996
Udgivet eksterntJa

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