Piezoelectric Properties of Pb1-xLax(Zr0.52Ti0.48)(1-x/4)O(3)Thin Films Studied by In Situ X-ray Diffraction

Author(s)

Cornelius, Thomas W. ^[1] ; Mocuta, Cristian ^[2] ; Escoubas, Stephanie ^[1] ; Lima, Luiz R. M. ^{[3, 4]} ; Araujo, Eudes B. ^[4] ; Kholkin, Andrei L. ^{[5, 6, 7]} ; Thomas, Olivier ^[1]

Affiliation

^[1] Aix Marseille Univ, Univ Toulon, IM2NP, CNRS, F-13397 Marseille 20 - France

^[2] Synchrotron SOLEIL, St Aubin BP 48, F-91192 Gif Sur Yvette - France

^[3] Univ Rio Verde UniRV, Fac Mech Engn, BR-75901970 Rio Verde - Brazil

^[4] Sao Paulo State Univ UNESP, Sch Nat Sci & Engn, Dept Phys & Chem, BR-15385000 Ilha Solteira - Brazil

^[5] Univ Aveiro, Dept Phys, P-3810193 Aveiro - Portugal

^[6] Univ Aveiro, CICECO Aveiro Inst Mat, P-3810193 Aveiro - Portugal

^[7] Natl Univ Sci & Technol MISiS, Lab Funct Low Dimens Struct, Moscow 119049 - Russia

• Document type: Journal article
• Source: MATERIALS; v. 13, n. 15 AUG 2020.
• Web of Science Citations: 0

Abstract

The piezoelectric properties of lanthanum-modified lead zirconate titanate Pb1-xLax(Zr0.52Ti0.48)(1-x/4)O(3)thin films, withx= 0, 3 and 12 mol% La, were studied by in situ synchrotron X-ray diffraction under direct (DC) and alternating (AC) electric fields, with AC frequencies covering more than four orders of magnitude. The Bragg reflections for thin films with low lanthanum concentration exhibit a double-peak structure, indicating two contributions, whereas thin films with 12% La possess a well-defined Bragg peak with a single component. In addition, built-in electric fields are revealed for low La concentrations, while they are absent for thin films with 12% of La. For static and low frequency AC electric fields, all lanthanum-modified lead zirconate titanate thin films exhibit butterfly loops, whereas linear piezoelectric behavior is found for AC frequencies larger than 1 Hz. (AU)

• FAPESP's process: 17/13769-1 - Multiferroic and ferroelectric materials for energy converters: synthesis, properties, phenomenology and applications
• Grantee: José Antonio Eiras
• Support Opportunities: Research Projects - Thematic Grants