Research demonstrates enhanced ferroelectric and piezoelectric properties in multiferroic compounds, suggesting new applications.
A novel multiferroic solid solution of (1−x)PbTiO3-(x)TbFeO3, within the range of 0.0 ≤ x ≤ 0.25, has been investigated. A composition-induced phase boundary from the tetragonal to the cubic phase is identified at x = 0.20. At this boundary composition, significant enhancements in ferroelectric properties (Pr ∼ 17 μC/cm2), piezoelectric responses (d33 ∼ 130 pC/N), and magnetic characteristics (∼0.03 emu/g) are observed. Structural analysis reveals a coexistence of ferroelectric (tetragonal: P4mm) and paraelectric (cubic: Pm-3m) phases at the boundary composition. An electric field-dependent structural study indicates that these mixed phases transition to a single ferroelectric P4mm phase. The discussion includes insights into the polarization extension phenomenon under the influence of an electric field.
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Kumar et al. (2025) studied this question.
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