The occupation sites of Dy- or Y-substituted PZT films were identified using Raman spectroscopy, and the correlation between the occupation site and ferroelectric property was investigated. When Dy or Y was less than 2%, the ferroelectric properties improved because substitution occurred at the B-sites of the PZT films. However, the ferroelectric properties decreased when the substituted ions exceeded 4% because substitution occurred at both B- and A-sites. Consequently, it is important to accurately introduce substituted ions into the B-sites in a PZT film to improve the ferroelectric properties.
|出版ステータス||Published - 2013|
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