A lead-free high-T
                        c
                         ferroelectric BaTi
                        2
                        O
                        5: A first-principles study

Umesh Waghmare; Marcel H.F. Sluiter; Teiichi Kimura; Takashi Goto; Yoshiyuki Kawazoe

doi:10.1063/1.1757021

A lead-free high-T _c ferroelectric BaTi ₂ O ₅: A first-principles study

Umesh Waghmare, Marcel H.F. Sluiter, Teiichi Kimura, Takashi Goto, Yoshiyuki Kawazoe

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

56 Citations (Scopus)

Abstract

Ferroelectricity in BaTi ₂ O ₅ was analyzed using first-principles calculations. The polarization of BaTi ₂ O ₅ was found to be smaller than the perovskite ferroelectrics and its Curie temperature was higher and comparable to that of PbTiO ₃ . The calculated piezoelectric constant was 2.02 C/m ² . The results show that the properties of BaTi ₂ O ₅ can be improved and it appeared a promising material for future lead-free high-temperature ferroelectrics.

Original language	English
Pages (from-to)	4917-4919
Number of pages	3
Journal	Applied Physics Letters
Volume	84
Issue number	24
DOIs	https://doi.org/10.1063/1.1757021
Publication status	Published - 2004 Jun 14

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1757021

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A lead-free high-T _c ferroelectric BaTi ₂ O ₅ : A first-principles study. / Waghmare, Umesh; Sluiter, Marcel H.F.; Kimura, Teiichi; Goto, Takashi; Kawazoe, Yoshiyuki.

In: Applied Physics Letters, Vol. 84, No. 24, 14.06.2004, p. 4917-4919.

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

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