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Article
Processing and characterization of compositionally modified PbTiO3 thin films prepared by pulsed laser deposition
Modified lead titanate of 0.9PbTiO3 −0.1Pb(Mg0.5 W0.5)O3 thin films have been deposited onto Pt-coated Si substrates by pulsed laser deposition. Films were crystallized in situ during deposition or by post-deposi...
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Article
Characterization of Lead Zirconate-Titanate Thin Films Prepared by Pulsed Laser Deposition
Dense smooth lead zirconate-titanate thin films have been prepared by excimer laser deposition. The as-deposited films are amorphous as indicated by x-ray powder patterns. Differential scanning calorimetry stu...
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Article
Preparation of PbTiO3-Pb(Mg0.5W0.5)O3 Thin Films Using Pulsed Laser Deposition
The preparation of modified lead titanate (0.9PbTiO3-0.1Pb(Mg0.5W0.5)O3) thin films by pulsed excimer laser deposition on Pt-coated Si substrates has been studied. Films were prepared with substrate temperatures ...
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Article
Crack Development in Pulsed Laser-Deposited PZT Thin Films
The development of cracks in a PZT thin film prepared by pulsed laser deposition on an unheated Pt-coated silicon substrate, and subsequently crystallized by post-deposition annealing, was investigated as a fu...
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Article
Dielectric Constant and Hysteresis Loop Remanent Polarization from 100 Hz to 2 MHz for Thin Ferroelectric Films
A modification of the standard Sawyer-Tower circuit method of displaying ferroelectric hysteresis allowed the technique to be extended to sinusoidal switching frequencies of 2 MHz. Using this method, probe sta...
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Article
Texturing and Dielectric Properties of Laser Deposited BaTiO3 Thin Films Grown on Heated Substrates
Thin films of BaTiO3 were deposited on platinum-coated silicon substrates using pulsed laser deposition and characterized using electron microscopy, powder x-ray diffraction and electrical measurements. The micro...
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Article
Post-Processing of Pulsed Laser-Deposited Pzt Thin Films
PZT thin films were prepared by pulsed laser deposition on unheated Ptcoated Si substrates. As deposited, the films were amorphous. Films crystallized at 550–600 °C to produce predominantly crystalline ferroel...
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Article
In Situ Characterization of the Pulsed Laser Deposition of Magnetic Thin Films
Pulsed Laser Deposition (PLD) has been proven as an effective means of depositing films from refractory targets. In our earlier work, either Nd/YAG or excimer lasers, interacting directly with target surfaces,...
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Article
Photovoltaic Effect in Thin Ferroelectric Films
Polarization-dependent photovoltaic currents are observed in continuously illuminated ferroelectric thin films under conditions of polarization reversal. Following reversal, an initial current rapidly decays t...
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Article
In Situ Characterization of the Pulsed Laser Deposition of Magnetic Thin Films
Pulsed Laser Deposition (PLD) has been proven as an effective means of depositing films from refractory targets. In our earlier work, either Nd/YAG or excimer lasers, interacting directly with target surfaces,...
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Article
Microstructural Changes During Processing of Laser-Deposited BaTiO3 and Pzt Thin Films
Thin films of BaTiO3 and PZT (lead zirconate titanate, 47%PbTiO3, 53%PbZrO3) have been produced by laser irradiation of the appropriate ceramic targets and deposition of the ejected and vaporized material on plan...
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Article
Lead Zirconate-Titanate Thin Films Prepared by the Laser Ablation Technique
Lead zirconate-titanate (PZT) thin films were prepared by the laser ablation technique. The PZT (Zr/Ti=53/47) target was irradiated using a focused q-switched Nd:YAG laser (15 ns, 100 mJ at 1.064 μm). The as-d...
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Article
Mass Spectrometric Probing of Laser-Induced Materials Vapor Transport: Graphite and Superconducting YBa2Cu3Ox
A very high pressure-sampling mass spectrometer has been used to identify the vapor transport species and determine the thermochemistry and kinetics of laser-induced plumes produced from graphite and supercond...