Non-stoichiometry and optical spectra of Nd(III) substituted PbTiO3

J. Bouwma; M.A. Heilbron

doi:10.1016/0025-5408(76)90142-2

Non-stoichiometry and optical spectra of Nd(III) substituted PbTiO₃

J. Bouwma, M.A. Heilbron

Inorganic Materials Science

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Abstract

The non-stoichiometry of the perovskite (ABO₃)-type phase in the system PbO---TiO₂-Nd₂O₃ has been studied. Monophasic compounds of composition Pb_1−αxNd_xTiO_{3+x(1.5−α)} with x ≤ 0.21 and 0.09 ≲ α ≲ 1.5 were prepared. The ferroelectric Curie temperature (T_c) shows a decrease of 18.5 K/at% Nd with increasing value of x. T_c shows an increase of 3.5 K/mol % PbO with decreasing value of α (increasing content of PbO). The observed effect of α on optical spectra can be interpreted by assuming that Nd(III) ions partly occupy B sites in compounds with α < 1.5.

Original language	English
Pages (from-to)	663-668
Journal	Materials research bulletin
Volume	11
Issue number	6
DOIs	https://doi.org/10.1016/0025-5408(76)90142-2
Publication status	Published - 1976

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title = "Non-stoichiometry and optical spectra of Nd(III) substituted PbTiO3",

abstract = "The non-stoichiometry of the perovskite (ABO3)-type phase in the system PbO---TiO2-Nd2O3 has been studied. Monophasic compounds of composition Pb1−αxNdxTiO3+x(1.5−α) with x ≤ 0.21 and 0.09 ≲ α ≲ 1.5 were prepared. The ferroelectric Curie temperature (Tc) shows a decrease of 18.5 K/at% Nd with increasing value of x. Tc shows an increase of 3.5 K/mol % PbO with decreasing value of α (increasing content of PbO). The observed effect of α on optical spectra can be interpreted by assuming that Nd(III) ions partly occupy B sites in compounds with α < 1.5.",

author = "J. Bouwma and M.A. Heilbron",

year = "1976",

doi = "10.1016/0025-5408(76)90142-2",

language = "English",

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T1 - Non-stoichiometry and optical spectra of Nd(III) substituted PbTiO3

AU - Bouwma, J.

AU - Heilbron, M.A.

PY - 1976

Y1 - 1976

N2 - The non-stoichiometry of the perovskite (ABO3)-type phase in the system PbO---TiO2-Nd2O3 has been studied. Monophasic compounds of composition Pb1−αxNdxTiO3+x(1.5−α) with x ≤ 0.21 and 0.09 ≲ α ≲ 1.5 were prepared. The ferroelectric Curie temperature (Tc) shows a decrease of 18.5 K/at% Nd with increasing value of x. Tc shows an increase of 3.5 K/mol % PbO with decreasing value of α (increasing content of PbO). The observed effect of α on optical spectra can be interpreted by assuming that Nd(III) ions partly occupy B sites in compounds with α < 1.5.

AB - The non-stoichiometry of the perovskite (ABO3)-type phase in the system PbO---TiO2-Nd2O3 has been studied. Monophasic compounds of composition Pb1−αxNdxTiO3+x(1.5−α) with x ≤ 0.21 and 0.09 ≲ α ≲ 1.5 were prepared. The ferroelectric Curie temperature (Tc) shows a decrease of 18.5 K/at% Nd with increasing value of x. Tc shows an increase of 3.5 K/mol % PbO with decreasing value of α (increasing content of PbO). The observed effect of α on optical spectra can be interpreted by assuming that Nd(III) ions partly occupy B sites in compounds with α < 1.5.

U2 - 10.1016/0025-5408(76)90142-2

DO - 10.1016/0025-5408(76)90142-2

M3 - Article

SN - 0025-5408

VL - 11

SP - 663

EP - 668

JO - Materials research bulletin

JF - Materials research bulletin

IS - 6

ER -

Non-stoichiometry and optical spectra of Nd(III) substituted PbTiO3

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Non-stoichiometry and optical spectra of Nd(III) substituted PbTiO₃