Synthesis of new ternary alkali metal GICs at high pressures
β Scribed by Nalimova, V.A; Zakharov, A.P; Avdeev, V.V; Semenenko, K.N
- Book ID
- 122713719
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 105 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0379-6779
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Pressure-induced phase transitions in Γve alkali metal-lanthanide double tungstates, were investi-ALn(WO 4 ) 2 , gated using high-pressure Raman spectroscopy in the range 0-35 GPa. A phase transition in the scheelite-type double tungstates and to a distorted monoclinic type occurs near 10 NaSm(WO )
A new C14 Laves phase was synthesized by direct reaction of potassium and silver at high pressure in a diamond anvil cell. The structure was refined by Rietveld analysis on powder diffraction data in the space group P6 3 /mmc to an R F value of 0.034. The lattice parameters are a β«Ψβ¬ 5.589(5) and c