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Infrared study of the high-temperature phase transition III—I of Na2SO4

✍ Scribed by El-Kabbany, F. ;Badr, Y. ;Tosson, M.

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
386 KB
Volume
63
Category
Article
ISSN
0031-8965

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✍ Thomas Armbruster; Reto Basler; Patric Mikhail; Jürg Hulliger 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 233 KB

Single crystals of Na 1.75 Yb 0.08 SO 4 , Na 1.82 Y 0.06 SO 4 , and Na 1.70 Ln 0.10 SO 4 (Ln 3؉ ‫؍‬La, Yb), were grown at 1300 K by the Czochralski method. The Yb 3؉ and Y 3؉ substituted crystals transform upon cooling to a monoclinic phase intergrown in a twin relationship. However, the high-temper