Electro-optic and ferroelectric effect in La-doped strontium barium niobate single crystals

Liu, S. T.; Maciolek, R. B.; Zook, J. D.; Rajagopalan, B

doi:10.1080/00150198808201389

Cited by 13 publications

(4 citation statements)

References 11 publications

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“…The reported pyroelectric coefficient for SBN50 single crystals is p ϭ 5.6 ϫ 10 Ϫ2 C⅐(cm 2 ⅐°C) Ϫ1 . 31 The lower value for the TGG samples is due, in part, to their higher T c values. Because SBN is a uniaxial ferroelectric, it is very difficult to achieve a high piezoelectric strain coefficient in a uniform microstructure of equiaxed grains, because of inefficient poling.…”

Section: (3) Electrical Propertiesmentioning

confidence: 98%

Fabrication and Electrical Properties of Textured Sr_0.53Ba_0.47Nb₂O₆ Ceramics by Templated Grain Growth

Duran

Trolier-McKinstry

Messing

2000

Journal of the American Ceramic Society

155

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Textured Sr 0.53 Ba 0.47 Nb 2 O 6 ceramics with a relative density of >95% were fabricated using templated grain growth (TGG). Acicular KSr 2 Nb 5 O 15 template particles synthesized via a molten salt process were aligned by tape casting in a mixture of solid-state-synthesized SrNb 2 O 6 and BaNb 2 O 6 powders. The resulting ceramics possessed strong fiber texture along the polar axis ([001]) of the strontium barium niobate. Samples with 15.4 wt% templates attained a textured fraction of 0.82 after sintering at a temperature of 1450°C for 4 h. These materials showed peak dielectric constants of 7550 at 1 kHz, remanent polarizations of 13.2 C/cm 2 , saturation polarizations of 21 C/cm 2 (60%-85% of the single-crystal value), piezoelectric strain coefficients of 78 pC/N (70%-85% of the single-crystal value), and room-temperature pyroelectric coefficients of 2.9 ؋ 10 ؊2 C⅐(cm 2 ⅐°C) ؊1 (52% of the single-crystal value). These results show that TGG is a viable option for accessing single-crystal properties in polycrystalline ceramics.

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Section: (3) Electrical Propertiesmentioning

confidence: 98%

Fabrication and Electrical Properties of Textured Sr_0.53Ba_0.47Nb₂O₆ Ceramics by Templated Grain Growth

Duran

Trolier-McKinstry

Messing

2000

Journal of the American Ceramic Society

155

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“…Essentially, transition metal/rare earthdoped single crystal and polycrystalline SBN systems are widely investigated owing to their applications in the field of piezoelectric, pyroelectric, electro-optic, nonlinear optics, holographic recording devices, etc. [3][4][5][6][7][8] Tetragonal Strontium-Barium-Niobate (SBN) undergoes a relaxor type phase transition from a ferro to a paraelectric phase, with no strong structural changes, besides losing its center of inversion. Ferro electricity in SBN is believed to occur because of the dynamics and properties of nanodomains (polar clusters).…”

Section: Introductionmentioning

confidence: 99%

Investigations on Fe-doped strontium barium niobate, single phase ferroelectric and magnetodielectric compounds

et al. 2015

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To understand possible interaction between magnetic and electric order parameters of Fe-doped Sr x Ba 1Àx Nb 2 O 6 (SBN), Fe-doped Sr 0:5 Ba 0:5 Nb 2 O 6 (SBN50) and Sr 0:4 Ba 0:6 Nb 2 O 6 (SBN40) are synthesized and investigated. Synthesis has been carried out via ceramic route. The paper reports synthesis, crystal structure, dielectric properties, P-E hysteresis loops, M-H hysteresis loops and magneto-capacitance of the Fe-doped SBN compositions. All the compositions are observed to exhibit a useful value of magnetocapacitance, especially at frequencies less than 10 kHz.

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“…Among the five different phases, the phase with all trans linking, called b phase is highly polar. [13][14][15][16][17] In addition, it has the advantage of lead-free nature, which is concerned with environment, safety and health. 9 The addition of ferroelectric ceramics to PVDF is found to enhance the electrical properties of PVDF preserving its flexural properties.…”

Section: Introductionmentioning

confidence: 99%

“…10 SBN has many technological applications such as electro-optic, pyroelectric, holographic data storage, piezoelectric, and photorefractive devices because of its excellent pyroeletric 11,12 and linear electrooptic effects with low half-wave voltage and photo refractive sensitivity. [13][14][15][16][17] In addition, it has the advantage of lead-free nature, which is concerned with environment, safety and health. Sr x Ba 1Àx Nb 2 O 6 with x = 0.53 (SBN) prepared by hot forging method is found to have high pyroelectric coefficient.…”

Section: Introductionmentioning

confidence: 99%

Dielectric and Pyroelectric Properties of Ferroelectric SBN–PVDF Composites Prepared by Hot‐Uniaxial Press

Kumar

2012

Int J Applied Ceramic Tech

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Composites of polyvinyledene fluoride (PVDF) and strontium barium niobate (SrxBa1−xNb2O6 for x = 0.53/SBN)/ФSBN − (1 − Ф)PVDF with Ф = 0.1 to 0.3 have been prepared by hot uniaxial press. Structural, morphological, dielectric and pyrolectric properties of the composites have been studied. Self‐sustaining thick films with a 0–3 connectivity have been synthesized. The dielectric constant (εr) was found to increase with the increase in ceramic volume fraction (Ф) in the composite. The composite with Ф = 0.3 is found to have highest values of pyroelectric coefficient (pi) ~13.475 μC/m2K, FOMI ~0.481 μC/m2K and FOMII ~20.13 μC/m2K with good mechanical flexibility.

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Electro-optic and ferroelectric effect in La-doped strontium barium niobate single crystals

Cited by 13 publications

References 11 publications

Fabrication and Electrical Properties of Textured Sr_0.53Ba_0.47Nb₂O₆ Ceramics by Templated Grain Growth

Fabrication and Electrical Properties of Textured Sr_0.53Ba_0.47Nb₂O₆ Ceramics by Templated Grain Growth

Investigations on Fe-doped strontium barium niobate, single phase ferroelectric and magnetodielectric compounds

Dielectric and Pyroelectric Properties of Ferroelectric SBN–PVDF Composites Prepared by Hot‐Uniaxial Press

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Electro-optic and ferroelectric effect in La-doped strontium barium niobate single crystals

Cited by 13 publications

References 11 publications

Fabrication and Electrical Properties of Textured Sr0.53Ba0.47Nb2O6 Ceramics by Templated Grain Growth

Fabrication and Electrical Properties of Textured Sr0.53Ba0.47Nb2O6 Ceramics by Templated Grain Growth

Investigations on Fe-doped strontium barium niobate, single phase ferroelectric and magnetodielectric compounds

Dielectric and Pyroelectric Properties of Ferroelectric SBN–PVDF Composites Prepared by Hot‐Uniaxial Press

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Fabrication and Electrical Properties of Textured Sr_0.53Ba_0.47Nb₂O₆ Ceramics by Templated Grain Growth

Fabrication and Electrical Properties of Textured Sr_0.53Ba_0.47Nb₂O₆ Ceramics by Templated Grain Growth