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Low‐frequency 1/ f noise in relaxor ferroelectric PMN–PZT
Author(s) -
Gridnev S. A.,
Tsotsorin A. N.,
Kalgin A. V.
Publication year - 2008
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200743423
Subject(s) - ferroelectricity , materials science , polar , permittivity , condensed matter physics , dielectric , relaxor ferroelectric , polarization (electrochemistry) , phase transition , relaxation (psychology) , noise (video) , ceramic , low frequency , nuclear magnetic resonance , analytical chemistry (journal) , chemistry , physics , optoelectronics , composite material , psychology , social psychology , astronomy , artificial intelligence , computer science , image (mathematics) , chromatography
The dielectric properties of relaxor ferroelectric ceramics (1 – x )PbMg 1/3 Nb 2/3 O 3 –( x )PbZr 0.53 Ti 0.47 O 3 (PMN–PZT) have been studied at various frequencies in the temperature range of the diffuse phase transition. Dispersion of the complex dielectric permittivity ε * characteristic for relaxors was revealed in the vicinity of the ε * maximum temperature T m . It has been determined that low‐frequency 1/ f noise in the studied system is mainly caused by the polarization relaxation in local polar regions and the spectral density of the noise depends on the relaxor composition and temperature. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)