Polar behaviour induced by lithium in potassium tantalate ceramics

Polar behaviour in K1−xLixTaO3 ceramics with x = 0.02, 0.05 and 0.10, processed by the conventional solid state method, is studied by Raman spectroscopy and thermally stimulated depolarization current (TSDC) techniques between 10 and 290 K. The TO1 mode of KTaO3 is revealed to harden in the whole te...

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Veröffentlicht in:	Journal of physics. Condensed matter 2012-02, Vol.24 (4), p.045906-15
Hauptverfasser:	Tkach, A, Almeida, A, Agostinho Moreira, J, Chaves, M R, Espinha, A, Vilarinho, P M
Format:	Artikel
Sprache:	eng
Schlagworte:	Ceramics Condensed matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Cooling Dielectrics, piezoelectrics, and ferroelectrics and their properties Doping Exact sciences and technology Ferroelectricity and antiferroelectricity Lithium Order disorder Phase transformations Phase transitions and curie point Physics Splitting
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