The influence of the Ti/Ba ratio on the formation of pyroelectric and piezoelectric quasi-amorphous films of BaTiO3

David Ehre, Vera Lyahovitskaya, Igor Lubomirsky

Research output: Contribution to journalArticle

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Abstract

The influence of the Ti/Ba ratio on the formation of pyroelectric and piezoelectric quasi-amorphous BaTiO3 films was investigated. Three types of films, Ti-rich, Ba-rich, and stoichiometric, were pulled through a temperature gradient or subjected to isothermal heating. The quasi-amorphous polar phase only formed in films pulled through the temperature gradient with Ti/Ba ratio within the broad range of 0.95-1.1. This implies that quasi-amorphous pyroelectric and piezoelectric thin films are significantly more tolerant of a deviation from stoichiometry than their crystalline counterparts.

Original languageEnglish
Pages (from-to)2742-2746
Number of pages5
JournalJournal of Materials Research
Volume22
Issue number10
DOIs
Publication statusPublished - Oct 2007

Fingerprint

Amorphous films
Thermal gradients
temperature gradients
Stoichiometry
Crystalline materials
Heating
Thin films
stoichiometry
deviation
heating
thin films

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

The influence of the Ti/Ba ratio on the formation of pyroelectric and piezoelectric quasi-amorphous films of BaTiO3 . / Ehre, David; Lyahovitskaya, Vera; Lubomirsky, Igor.

In: Journal of Materials Research, Vol. 22, No. 10, 10.2007, p. 2742-2746.

Research output: Contribution to journalArticle

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