Effect of yttrium on dielectric, pyroelectric and piezoelectric properties of PBN ferroelectrics

K. Sambasiva Rao; N. Vallis Nath; P. Murali Krishna; D. Madhava Prasad; Hyung Lee Joon

doi:10.1142/S0217979206035345

Effect of yttrium on dielectric, pyroelectric and piezoelectric properties of PBN ferroelectrics

K. Sambasiva Rao, N. Vallis Nath, P. Murali Krishna, D. Madhava Prasad, Hyung Lee Joon

Andhra University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Materials with batch formula Pb_(1-x-3y/2)R_yBa _xNb₂O₆, where R = Y, (1 - x) = 0.73, 0.63, 0.53 and y = 0.00, 0.02 have been prepared by the double sintering method. Substitution of yttrium (Y) restored tetragonal symmetry of PBN but reduced lattice parameters, cell volume and enhanced the density. Transition temperature of PBN has decreased due to the substitution of Y³⁺. Enhanced room temperature spontaneous polarization (P_s) = 149.97 μC/sq. cm has been observed in PBN53, which is above MPB, whereas enhanced value of P _s = 112.74 μC/sq. cm is found in Y: PBN63 at MPB region. The room temperature Pyroelectric coefficient (P_RT = 1.07) has been observed in the composition where maximum volume of P_s is obtained. Similarly, enhanced values of piezoelectric coefficients K_p = 0.244, K _t = 0.353, K₃₁ = 0.131, d₃₁ = 60, d ₃₃ = 159 and g₃₁ = 3.65 have also been found in the same material PBN53. Substitution of Yttrium enhanced the stiffness constant 13.59 in PBN 73 to 14.27 of Y: PBN73.

Original language	English
Pages (from-to)	3081-3091
Number of pages	11
Journal	International Journal of Modern Physics B
Volume	20
Issue number	21
DOIs	https://doi.org/10.1142/S0217979206035345
State	Published - 20 Aug 2006

Keywords

Dielectric
Ferroelectric
Piezoelectric
Pyroelectric
X-ray diffraction

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title = "Effect of yttrium on dielectric, pyroelectric and piezoelectric properties of PBN ferroelectrics",

abstract = "Materials with batch formula Pb(1-x-3y/2)RyBa xNb2O6, where R = Y, (1 - x) = 0.73, 0.63, 0.53 and y = 0.00, 0.02 have been prepared by the double sintering method. Substitution of yttrium (Y) restored tetragonal symmetry of PBN but reduced lattice parameters, cell volume and enhanced the density. Transition temperature of PBN has decreased due to the substitution of Y3+. Enhanced room temperature spontaneous polarization (Ps) = 149.97 μC/sq. cm has been observed in PBN53, which is above MPB, whereas enhanced value of P s = 112.74 μC/sq. cm is found in Y: PBN63 at MPB region. The room temperature Pyroelectric coefficient (PRT = 1.07) has been observed in the composition where maximum volume of Ps is obtained. Similarly, enhanced values of piezoelectric coefficients Kp = 0.244, K t = 0.353, K31 = 0.131, d31 = 60, d 33 = 159 and g31 = 3.65 have also been found in the same material PBN53. Substitution of Yttrium enhanced the stiffness constant 13.59 in PBN 73 to 14.27 of Y: PBN73.",

keywords = "Dielectric, Ferroelectric, Piezoelectric, Pyroelectric, X-ray diffraction",

author = "{Sambasiva Rao}, K. and {Vallis Nath}, N. and {Murali Krishna}, P. and {Madhava Prasad}, D. and Joon, {Hyung Lee}",

year = "2006",

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language = "English",

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T1 - Effect of yttrium on dielectric, pyroelectric and piezoelectric properties of PBN ferroelectrics

AU - Sambasiva Rao, K.

AU - Vallis Nath, N.

AU - Murali Krishna, P.

AU - Madhava Prasad, D.

AU - Joon, Hyung Lee

PY - 2006/8/20

Y1 - 2006/8/20

N2 - Materials with batch formula Pb(1-x-3y/2)RyBa xNb2O6, where R = Y, (1 - x) = 0.73, 0.63, 0.53 and y = 0.00, 0.02 have been prepared by the double sintering method. Substitution of yttrium (Y) restored tetragonal symmetry of PBN but reduced lattice parameters, cell volume and enhanced the density. Transition temperature of PBN has decreased due to the substitution of Y3+. Enhanced room temperature spontaneous polarization (Ps) = 149.97 μC/sq. cm has been observed in PBN53, which is above MPB, whereas enhanced value of P s = 112.74 μC/sq. cm is found in Y: PBN63 at MPB region. The room temperature Pyroelectric coefficient (PRT = 1.07) has been observed in the composition where maximum volume of Ps is obtained. Similarly, enhanced values of piezoelectric coefficients Kp = 0.244, K t = 0.353, K31 = 0.131, d31 = 60, d 33 = 159 and g31 = 3.65 have also been found in the same material PBN53. Substitution of Yttrium enhanced the stiffness constant 13.59 in PBN 73 to 14.27 of Y: PBN73.

AB - Materials with batch formula Pb(1-x-3y/2)RyBa xNb2O6, where R = Y, (1 - x) = 0.73, 0.63, 0.53 and y = 0.00, 0.02 have been prepared by the double sintering method. Substitution of yttrium (Y) restored tetragonal symmetry of PBN but reduced lattice parameters, cell volume and enhanced the density. Transition temperature of PBN has decreased due to the substitution of Y3+. Enhanced room temperature spontaneous polarization (Ps) = 149.97 μC/sq. cm has been observed in PBN53, which is above MPB, whereas enhanced value of P s = 112.74 μC/sq. cm is found in Y: PBN63 at MPB region. The room temperature Pyroelectric coefficient (PRT = 1.07) has been observed in the composition where maximum volume of Ps is obtained. Similarly, enhanced values of piezoelectric coefficients Kp = 0.244, K t = 0.353, K31 = 0.131, d31 = 60, d 33 = 159 and g31 = 3.65 have also been found in the same material PBN53. Substitution of Yttrium enhanced the stiffness constant 13.59 in PBN 73 to 14.27 of Y: PBN73.

KW - Dielectric

KW - Ferroelectric

KW - Piezoelectric

KW - Pyroelectric

KW - X-ray diffraction

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JO - International Journal of Modern Physics B

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ER -

Effect of yttrium on dielectric, pyroelectric and piezoelectric properties of PBN ferroelectrics

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