Structural Peculiarities of the Intermediate Phase in Zr-Rich Lead Zirconate Titanate

Journal Article · Tue Oct 15 04:00:00 EDT 2019 · Physics of the Solid State

DOI:https://doi.org/10.1134/S1063783419100056· OSTI ID:22925110

Bronwald, I. A. ^[1]; Leontyev, N. G. ^[2]; Leontyev, I. N. ^[3]; Chernyshov, D. Yu.; Filimonov, A. V. ^[4]; Vakhrushev, S. B. ^[1]

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1. Ioffe Institute, Russian Academy of Sciences (Russian Federation)
2. Azov–Black Sea Engineering Institute, Don State Agrarian University (Russian Federation)
3. Southern Federal University (Russian Federation)
4. Peter the Great St. Petersburg Polytechnic University (Russian Federation)

This paper presents the results of X-ray diffraction studies on a single crystal of lead zirconate titanate PbZr{sub 0.993}Ti{sub 0.007}O{sub 3} in the region of existence of an intermediate ferroelectric phase. In addition to the known superstructure reflections of the M type q{sub M} = {(1/2),(1/2),0} and the first-order satellite reflections q{sub M} + {δ, δ, δ}, unknown second-order satellites have been observed near q{sub M} and near the Bragg reflections. Structural model of regular system of antiphase domains is used for diffraction calculation. The model is shown to describe the first- and second-orders satellite reflections in the vicinity of q{sub M}, but it cannot explain the appearance of satellites around the main Bragg peaks. A possible origin of the system of the superstructures observed in the intermediate phase is discussed.

• OSTI ID: 22925110
• Journal Information: Physics of the Solid State, Journal Name: Physics of the Solid State Journal Issue: 10 Vol. 61; ISSN 1063-7834
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BRAGG CURVE
BRAGG REFLECTION
CRYSTAL STRUCTURE
FERROELECTRIC MATERIALS
LEAD COMPOUNDS
MONOCRYSTALS
PHASE TRANSFORMATIONS
TITANATES
X-RAY DIFFRACTION
ZIRCONATES