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High frequency relaxations in Pb2K(Nb1−xTax)5O15 ceramics (0 ≦x ≦ 1)

✍ Scribed by Bonnet, J.-P. ;Lu., Zhigao ;Ravez, J. ;Hagenmuller, P.


Book ID
105384903
Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
350 KB
Volume
153
Category
Article
ISSN
0031-8965

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High frequency dielectric relaxation in
✍ F. Chu; N. Setter; C. Elissalde; J. Ravez 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 406 KB

Pb(Sc~ ~Tal \_,)O~ ceramics have been characterized by dielectric measurements in a wide range of frequencies (10 2-10'; Hz). A strong dispersion occurs with two low and high frequency contributions below the transition temperature. Only high frequency relaxation is still observed at high temperatur

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Ferroelectric ceramics of \(\mathrm{Pb}_{2}\left(\mathrm{~K}_{1-x} \mathrm{La}_{x / 3}\right) \mathrm{Nb}_{5} \mathrm{O}_{15}(x=0,0.1\), and 0.3\()\) and of tetragonal tungsten bronze (TTB) type have been investigated. The Curie temperatures of those TTB-type materials are weakly dependent on \(x\).