Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/9775
Title: Deep level transient spectroscopy of lead zirconate titanate grown on La0.5Sr0.5CoO3/LaAlO3 substrate
Authors: Lo, VC
Wong, KH
So, KS
Keywords: Deep level transient capacitance
Fatigued
La0.5Sr0.5CoO3 (LSCO)
Lead zirconate titanate (PZT)
Pulsed laser deposition
Issue Date: 2004
Publisher: Elsevier Science Sa
Source: Thin solid films, 2004, v. 458, no. 1-2, p. 336-343 How to cite?
Journal: Thin Solid Films 
Abstract: Epitaxial lead zirconate titanate thin films were grown by pulsed laser deposition method on LaAlO3 substrate using La0.5Sr 0.5CoO3 (LSCO) as the bottom electrode. Two different top electrode systems were studied: a single platinum layer and a platinum/LSCO bi-layer. The as-grown, post-annealed and fatigued samples were subsequently investigated via polarization-electric field hysteresis loops measurement and deep level transient spectroscopy. It was found that polarization fatigue occurs only for films with single platinum layer top electrode but not with Pt/LSCO electrode bi-layer ones. Hole traps with activation energy 0.209 eV were detected in the fatigued samples with single Platinum top electrode. This is the first observation of fatigue-related deep levels in PZT films and provides new insight into the switching fatigue mechanisms.
URI: http://hdl.handle.net/10397/9775
ISSN: 0040-6090
DOI: 10.1016/j.tsf.2003.12.074
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