Journal
THIN SOLID FILMS
Volume 475, Issue 1-2, Pages 283-286Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2004.07.024
Keywords
PZO/PTO artificial superlattices; pulsed laser deposition; large dielectric constant; ferroelectric
Ask authors/readers for more resources
PbZrO3 (PZO)/PbTiO3 (PTO) artificial superlattices were fabricated by pulsed laser deposition, and their structural and dielectric properties were investigated. Epitaxial PbTiO3 (PTO) and PbZrO3 (PZO) layers were alternately deposited on La0.5Sr0.5CoO3 (LSCO) (100)/ MgO (100) substrate at 500 Cdegrees with various stacking periods from 1 to 100 unit cells. The (100) plane spacing (d(100)) of the superlattices increased with decreasing the stacking period, and the corresponding dielectric constant was drastically improved. The dielectric constant of the superlattice reached 800 at a stacking period of 1 unit cell/1 unit cell (PZO(1)/PTO1). With small stacking periods (PZO(1)/PTO(1)and PZO(2)/ PTO2 unit cells), superlattices exhibited the capacitance-voltage hysteresis, i.e., ferroelectric behavior. (C) 2004 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available