Broadband dielectric spectroscopy of Pb-based relaxor ferroelectric (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 with intermediate random fields | Zendy

Šarūnas Svirskas | Zendy; J. Banys | Zendy; Seiji Kojima | Zendy

Open Access

Broadband dielectric spectroscopy of Pb-based relaxor ferroelectric (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 with intermediate random fields

Author(s) -

Šarūnas Svirskas,

J. Banys,

Seiji Kojima

Publication year - 2017

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.4979729

Subject(s) - dielectric , materials science , phase transition , ferroelectricity , perovskite (structure) , permittivity , condensed matter physics , phase (matter) , dielectric permittivity , polar , spectroscopy , chemical physics , optoelectronics , chemistry , crystallography , physics , organic chemistry , quantum mechanics , astronomy

This work is devoted to the investigation of the broad band dielectric spectra of 0.83PbMg1/3Nb2/3O3-0.17PbTiO3 (PMN-17PT) single crystals which have intermediate random fields. The necessity to understand the impact of random fields for the phase transition in heterogeneous perovskite oxides is of central importance. The thorough studies of dielectric properties revealed that the structural phase transition in PMN-17PT has a very complex dynamics. The temperature dependences of dielectric permittivity show that this material has features characteristic of polar nano regions and order-disorder phase transition dynamics. We speculate that this is the fingerprint of the phase transition in such heterogeneous perovskite oxides.

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