Relaxor ferroelectric properties of 85PZN–15BT transparent ceramic at low temperatures

Dielectric, hysteresis (P–E) loops and TSDC properties of transparent 85PZN–15BT ceramic over -150–150°C were investigated. The sample was found to exhibit a strong relaxor behavior and a relatively small remanent polarization. TSDC studies showed that there existed an electric field-dependent peak in the p versus T. Such interesting features were attributed to the electric field-induced transition and coexistence of polar nanoregion, long-range ordered polar region and nonpolarizable BZN-rich region.

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Crystal Growth and Ferroelectric Properties in Bi0.5Na0.5TiO3–BaTiO3 Crystals

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.388.241 ◽

2008 ◽

Vol 388 ◽

pp. 241-244 ◽

Cited By ~ 2

Author(s):

Shunsuke Teranishi ◽

Yuji Noguchi ◽

Masaru Miyayama

Keyword(s):

Electric Field ◽

Remanent Polarization ◽

Ferroelectric Properties ◽

Maximum Size ◽

Flux Method ◽

Strain Measurements ◽

Piezoelectric Strain ◽

Coercive Electric Field ◽

Piezoelectric Strain Constant ◽

Electric Field Induced Strain

0.999Bi0.5Na0.5TiO3-0.001BaTiO3 (BNT-0.1%BT) single crystals with a maximum size of 1×1×1 mm3 were successfully grown by a flux method using BNT-6%BT powder and Bi2O3 as a flux. The crystals showed a remanent polarization of 33 μC/cm2 and coercive electric field of 40 kV/cm along [100]Cubic. Electric-field induced strain measurements along [100]Cubic revealed an effective piezoelectric strain constant d33 * of 80 pm/V.

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The Peculiarities of DC and AC-Field Dependent Relaxor/Ferroelectric Properties of Some Disordered Crystals

Ferroelectrics ◽

10.1080/00150190211195 ◽

2002 ◽

Vol 270 (1) ◽

pp. 363-368

Author(s):

L. S. Kamzina

Keyword(s):

Ferroelectric Properties ◽

Relaxor Ferroelectric ◽

Field Dependent ◽

Ac Field ◽

Disordered Crystals

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Fatigue and Ferroelectric Properties of Bi3.25Gd0.75Ti2.97V0.03O12

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.624.170 ◽

2012 ◽

Vol 624 ◽

pp. 170-173

Author(s):

J.G. Liu ◽

X.A. Mei ◽

C.Q. Huang ◽

J. Liu

Keyword(s):

Solid State ◽

Electric Field ◽

Solid State Reaction ◽

Coercive Field ◽

Perovskite Structure ◽

Remanent Polarization ◽

Ferroelectric Properties ◽

Layered Perovskite ◽

Random Orientation ◽

Layered Perovskite Structure

Bi3.25Gd0.75Ti2.97V0.03O12 (BGTV) ceramics were prepared by solid state reaction. These samples had polycrystalline Bi-layered perovskite structure without preferred orientation, and consisted of well developed plate-like grains with random orientation. The remanent polarization and the coercive field of the BGTV were 24μC/cm2 and 65kV/cm at an electric field of 100kV/cm, respectively. These ferroelectric properties of BGTV are superior to V-doped Bi4Ti3O12 (~20μC/cm2 and 80kV/cm) and (Sr, Ta)-doped Bi4Ti3O12 (~12μC/cm2 and 71kV/cm) ceramics. In addition, the dense ceramics of BGTV could be obtained by sintering at temperatures 100─200°C lower than those of the SrBi2Ta2O9 system.

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Relaxor Ferroelectric Oxides: Concept to Applications

10.5772/intechopen.96185 ◽

2021 ◽

Author(s):

Lagen Kumar Pradhan ◽

Manoranjan Kar

Keyword(s):

Long Range ◽

Ferroelectric Properties ◽

Functional Materials ◽

Ferroelectric Ceramic ◽

Relaxor Ferroelectric ◽

Device Applications ◽

Electric Dipoles ◽

Long Range Ordering ◽

External Stimuli ◽

Ferroelectric Oxides

Ferroelectric ceramic is one of the most important functional materials, which has great importance in modern technologies. A ferroelectric ceramic simultaneously exhibits dielectric, piezoelectric, ferroelectric, and pyroelectric properties. The inherent ferroelectric properties are directly related to long-range electric dipoles arrangement in the ferroelectric domains and its response to external stimuli. However, the interruption of the long-range ordering of dipoles leads to the formation of a special class of material is known as relaxor ferroelectric. It shows quite different physical properties as compared to ferroelectric (normal ferroelectric). The origin and design of relaxor ferroelectric are quite interesting for fundamental perspective along with device applications. Therefore, the origin of relaxor ferroelectric along with its fundamental understanding for possible future applications, have been explained briefly in the present chapter.

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Position and electric field dependent local lattice strain detected by nanobeam x-ray diffraction on a relaxor ferroelectric single crystal

Physical Review B ◽

10.1103/physrevb.105.024101 ◽

2022 ◽

Vol 105 (2) ◽

Author(s):

Shinobu Aoyagi ◽

Ayumi Aoyagi ◽

Hiroaki Takeda ◽

Hitoshi Osawa ◽

Kazushi Sumitani ◽

...

Keyword(s):

Electric Field ◽

Single Crystal ◽

Lattice Strain ◽

Relaxor Ferroelectric ◽

X Ray Diffraction ◽

X Ray ◽

Field Dependent ◽

Local Lattice ◽

Ferroelectric Single Crystal

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Ferroelectric Properties of Pb(Zr1/2Ti1/2)O3-Pb(Zn1/3Nb2/3)O3 Ceramics under Compressive Stress Applied Perpendicular to Electric Field

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.421-422.411 ◽

2009 ◽

Vol 421-422 ◽

pp. 411-414 ◽

Cited By ~ 1

Author(s):

Muangjai Unruan ◽

Thanapong Sareein ◽

Anurak Prasatkhetragarn ◽

Athipong Ngamjarurojana ◽

Supon Ananta ◽

...

Keyword(s):

Electric Field ◽

Compressive Stress ◽

Mixed Oxide ◽

Coercive Field ◽

Remanent Polarization ◽

Domain Walls ◽

Domain Switching ◽

Ferroelectric Properties ◽

Electric Field Direction ◽

Ferroelectric Hysteresis

Effects of perpendicular compressive stress on the ferroelectric properties of ceramics in PZT-PZN system were investigated. The (1-x)Pb(Zr1/2Ti1/2)O3-xPb(Zn1/3Nb2/3)O3 or (1-x)PZT- (x)PZN (x = 0.1-0.5) ceramics were prepared by a conventional mixed-oxide method. The ferroelectric properties were measured under compressive stress applied perpendicular to an electric field direction at stress levels up to 90 MPa using a compressometer in conjunction with a modified Sawyer-Tower circuit. It was found that with increasing compressive stress the area of the ferroelectric hysteresis (P-E) loops, the maximum polarization (Pmax), and the remanent polarization (Pr) decreased, while the coercive field (Ec) remained relatively constant. These results were interpreted through the domain switching, clamping of domain walls and de-poling mechanisms.

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