Relaxation polarization of PbMg 1/3Nb2/3O3(PMN)-A ferroelectric with a diffused phase transition

Кириллов, В.В.; Исупов, В. А.

doi:10.1080/00150197308235773

Cited by 346 publications

(129 citation statements)

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“…It has often been reported in the literature studying the phase transitions characteristics in ferroelectric ceramics modified with insertion of dopants or two ferroic phases interacting [2]. Compositional variations in this type of systems can often cause structural disorders as well as changes in the ferroelectric-paraelectric (FE-PE) phase transition properties, promoting the well-known diffuse phase transition (DPT) [3]. Another common, but not intrinsic, behavior in DPT materials is the frequency dependence of the dielectric permittivity (or relaxor characteristics) often related to structural defects, which cause dielectric relaxations [4].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Electrical Properties of PZT/BaFe12O19 Multiferroic Ceramics

Portugal

Peko

Hernandes

et al. 2012

KEM

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Abstract. Multiferroic ceramics, based on the ferroelectric and ferrimagnetic phases of the Pb(Zr 0.65 Ti 0.35 )O 3 (PZT) and BaFe 12 O 19 (BaM) systems, respectively, were obtained from the conventional ceramic method. The electrical properties have been investigated in a wide temperature and frequency range. The influence of the magnetic phase on the ferroelectric and dielectric properties of the ferroelectrics phases have been taken into account. The phase transition characteristics shown to be strongly affected by the amount of the BaM phase, while the dielectric properties revealed to be directly dominated by the presence of conductive effects related to the charge transport mechanisms associated to the magnetic phase.

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Section: Introductionmentioning

confidence: 99%

Synthesis and Electrical Properties of PZT/BaFe12O19 Multiferroic Ceramics

Portugal

Peko

Hernandes

et al. 2012

KEM

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“…Inhomogeneities mentioned in group c) may lead to a strong broadening of the phase transition region, deviation from CurieWeiss behaviour and frequency dependence of e' (7,8).…”

Section: Introductionmentioning

confidence: 99%

Effects of microstructure on the dielectric properties of lanthana substituted PbTiO3 and Pb (Zr, Ti) O3-ceramics

Burggraaf

Keizer

1975

Materials Research Bulletin

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The effect of grain size on unit-cell dimensions and dielectric properties has been studied in ceramic lanthanasubstituted leadtitanate and leadtitanate-zirconate mixed crystals of the general composition Pbl-exLaxZryTil_y O3+x(1.5-~). The influence of grain size has been investigated in the range from 0.6~m-10~m and can be distinguished from other microstructural influences by its effect on dielectric properties. A decrease of the grain size leads to a decrease of the maximum of the dielectric constant e' at the "Curie" temperature Tc', while the value of T c' shifts to a lower temperature and the E'-T curve (phase transition) becomes broadened. The results can be discussed in terms of a distribution of internal compression stresses spreading around an average value which increases with decreasing grain size.

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“…High value of h (∼0·4) has also been observed by Kirillov and Isupov (1973) for lead magnesium niobate (PMN) and attributed it to the existence of polar region within non-polar region.…”

Section: Dispersive Nature Of ε and ε Of Plztsmentioning

confidence: 90%

“…These weakly cooperating dipole moments produce the diffuse phase transition in the present systems in agreement with the observations of Dai et al (1993Dai et al ( , 1994 for tetragonal PLZT systems. The diffuse type ferroelectric phase transition study may be analysed by a quadratic relation between dielectric constant and temperature (Kirillov and Isupov 1973) …”

Section: Ferroelectric Phase Transition In Plzt X/57/43mentioning

confidence: 99%

Dielectric response of PLZT ceramics x/57/43 across ferroelectric–paraelectric phase transition

et al. 2011

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Relaxation polarization of PbMg 1/3Nb2/3O3(PMN)-A ferroelectric with a diffused phase transition

Cited by 346 publications

References 2 publications

Synthesis and Electrical Properties of PZT/BaFe<sub>12</sub>O<sub>19</sub> Multiferroic Ceramics

Synthesis and Electrical Properties of PZT/BaFe<sub>12</sub>O<sub>19</sub> Multiferroic Ceramics

Effects of microstructure on the dielectric properties of lanthana substituted PbTiO3 and Pb (Zr, Ti) O3-ceramics

Dielectric response of PLZT ceramics x/57/43 across ferroelectric–paraelectric phase transition

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