NDLI: Superior electromechanical performance over PZT, in lead zinc niobate (PZN)

Content Provider	Springer Nature Link
Author	Roy, S.S. Morros, C. Bowman, R.M. Gregg, J.M.
Copyright Year	2004
Abstract	Strongly oriented thin films of lead zinc niobate (PZN)–lead zirconium titanate (PZT) with (La,Sr)CoO3 lower electrodes were grown on MgO {001} substrates by pulsed laser deposition. The films were perovskite-dominated with strong in-plane and out-of-plane orientations. Room-temperature functional characterisation indicated that the films were ferroelectric, with dielectric constant ∼550 and loss tangent ∼0.08 at 1 kHz. The crystallographic strain, as a function of applied dc field, was monitored by in situ X-ray diffraction. The maximum electric-field-induced crystallographic strain (∼0.22%) was comparable to that observed in bulk, but at significantly greater field (∼150 kV cm-1). The effective d33 value obtained from the crystallographic strain data was around 150 pm V-1, which is high for ferroelectric thin films 400 nm in thickness. The local polarisation-switching properties of the films were investigated using a piezo-response atomic force microscope. Domain maps for a 5×5 μm2 region of material were recorded as a function of dc bias, and confirmed the ferroelectric switching behaviour.
Starting Page	881
Ending Page	885
Page Count	5
File Format	PDF
ISSN	09478396
Journal	Applied Physics A
Volume Number	81
Issue Number	4
e-ISSN	14320630
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-07-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Nanotechnology Characterization and Evaluation Materials Surfaces and Interfaces, Thin Films Condensed Matter Operating Procedures, Materials Treatment
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Science

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