KINKA, Martynas; GABRIELAITIS, D.; ALBINO, Marjorie; JOSSE, Michaël; PALAIMIENE, E.; GRIGALAITIS, Robertas; MAGLIONE, Mario; BANYS, Juras

doi:10.1080/00150193.2015.1061348

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KINKA, Martynas
Faculty of Physics [Vilnius]

GABRIELAITIS, D.
Faculty of Physics [Vilnius]

ALBINO, Marjorie
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Ferroelectrics. 2015, vol. 485, n° 1, p. 101-109

Taylor & Francis: STM, Behavioural Science and Public Health Titles

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Dielectric response of Ba2NdFeNb4-xTaxO15 (x = 0.3, 0.6 and 2) solid solutions with Tetragonal Tungsten Bronze structure has been investigated by means of broadband dielectric spectroscopy in the frequency range from 20 Hz to 37 GHz. Pure Ba2NdFeNb4O15 compound displays ferroelectric behavior. Substitution of Nb5+ by Ta5+ considerably alters dielectric response of this system. Ferroelectric state was observed only for x = 0.3 compound with slightly lowered ferroelectric phase transition temperature. Further increase of x causes formation of relaxor state in these solid solutions and considerably lowers corresponding dielectric permittivity dispersion temperature region.< Leer menos

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Tetragonal tungsten bronze

broadband dielectric spectrosopy

ferroelec trics

ferroelectric relaxor

dielectric relaxation

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Investigation of dielectric relaxation processes in Ba2NdFeNb4-xTaxO15 ceramics

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