Low temperature superlattice in monoclinic PZT

Abstract

TEM has shown that the strongly piezoelectric material Pb(Zr0.52Ti0.48)O3 separates into two phases at low temperatures. The majority phase is the monoclinic phase previously found by x-ray diffraction. The minority phase, with a nanoscale coherence length, is a slightly distorted variant of the first resulting from the anti-phase rotation of the oxygen octahedra about [111]. This work clears up a recent controversy about the origin of superlattice peaks in these materials, and supports recent theoretical results predicting the coexistence of ferroelectric and rotational instabilities.

REVTeX4, 4 eps figures embedded. JPG version of figs. 2&4 is also included

References in corpus (4)

• Monoclinic and triclinic phases in higher-order Devonshire theory
• Stability of the monoclinic phase in the ferroelectric perovskite PbZr(1-x)TixO3
• Electric-field induced polarization paths in PZT alloys
• Possible Coexistence of Rotational and Ferroelectric Lattice Distortions in Rhombohedral PZT

Cited by in corpus (12)

• Phase diagram of Pb(Zr,Ti)O3 solid solutions from first principles
• Single Crystal Study of Competing Rhombohedral and Monoclinic Order in Lead Zirconate Titanate
• High pressure phases in highly piezoelectric Pb(Zr0.52Ti0.48)O3
• High-resolution synchrotron XRD study of Zr-rich compositions of Pb(Zr_xTi_1-x)O_3 (0.525\leq x \leq 0.60): evidence for the absence of the rhombohedral phase
• Soft phonon columns on the edge of the Brillouin zone in the relaxor PbMg1/3Nb2/3O3
• Phase transitions and ferroelectrics: revival and the future in the field
• Use of resonance Raman spectroscopy to study the phase diagram of PbZr0.52Ti0.48O3
• Low-temperature phases in Pb(Zr0.52Ti0.48)O3: A neutron powder diffraction study
• Confirmation of the monoclinic Cc space group for the ground state phase of Pb(Zr0.525Ti0.475)O3 (PZT525): A Combined Synchrotron X-Ray and Neutron Powder Diffraction Study
• Terahertz dielectric response and coupled dynamics of ferroelectrics and multiferroics from effective Hamiltonian simulations
• Ground state of (Pb0.94Sr0.06)(Zr0.530Ti0.470)O3 in the morphotropic phase boundary region: Evidence for a monoclinic Cc space group
• Antiferrodistortive Phase Transition in Pseudorhombohedral (Pb0.94Sr0.06)(Zr0.550Ti0.450)O3 : A Combined Synchrotron x-ray and Neutron Powder Diffraction Study