New phase diagram for Pb(Zr¹-^xTi^x)O³ with up to 5% under pressure

Abstract

On the basis of pressure investigations of electric permittivity and remnant polarization, a new P-T phase diagram was obtained, and it was ascertained that in Pb(Zr_1-xTi)O³ solid solutions with x up to 5%, the following phase transitions exist: A₀⇆ F and F ⇆ P for pressure p < p_F; A₀ ⇆ F, A₁⇆ F, and F ⇆ P for p₁ < p < p_c; and A₀⇆ A₁, and A₁⇆ P for p > p₀. A₁ is a new antiferroelectric phase induced by pressure p > p¹ and p, is a critical pressure at which the ferroelectric phase disappears.