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

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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 languageEnglish
Pages (from-to)4917-4919
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number24
DOIs
Publication statusPublished - 2004 Jun 14

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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