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Electric capacitance anomaly near the superionic phase transition in (NH4)4H2(SeO4)3 single crystals

✍ Scribed by Pawlaczyk, Cz. ;Pawłowski, A.

Book ID
105381312
Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
307 KB
Volume
113
Category
Article
ISSN
0031-8965

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Brillouin scattering study of the superi
Brillouin scattering study of the superionic phase transition in (NH4)4H2(SeO4)3
✍ M. Pavel; A. Pawlowski; Z. Zikmund; M. Drozdowski 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 305 KB

The acoustic behaviour of (NH,),H,(SeO,), single crystal around the superionic phase transition at 378 K was studied by Brillouin scattering measurements. No anomaly of the longitudinal mode in the [loo] direction was observed whereas 5% softening of the longitudinal mode with a minimum at 382 K was