Synthesis of Complex-oxide Nanorods via Pulsed-laser Deposition

2010 ◽  
Vol 1256 ◽  
Author(s):  
John E Mathis ◽  
Gyula Eres ◽  
Claudia Cantoni ◽  
Kyunghoon Kim ◽  
Hans Christen
Keyword(s):  
Pulsed Laser Deposition ◽  
Sol Gel ◽  
Pulsed Laser ◽  
Complex Oxides ◽  
Complex Oxide ◽  
Laser Deposition ◽  
Complex Structures ◽  
Layer By Layer ◽  
Oxide Nanorods ◽  
Layer Control

AbstractNanorods composed of complex oxides have been synthesized using hydrothermal and sol-gel methods, but pulsed-laser deposition (PLD) provides precise, layer-by-layer control of growth, and is the method of choice for synthesizing complex structures. However, producing complex-oxide nanorods by PLD has proved elusive.Here we report on our efforts to produce nanorods composed of the best-understood complex oxide, strontium titanate (STO). The results suggest it is indeed possible to produce STO nanorods via PLD by using a template of MgO nanorods.

scholarly journals Interface Combinatorial Pulsed Laser Deposition to Enhance Heterostructures Functional Properties

2020 ◽  
Author(s):  
Jérôme Wolfman ◽  
Beatrice Negulescu ◽  
Antoine Ruyter ◽  
Ndioba Niang ◽  
Nazir Jaber
Keyword(s):  
Pulsed Laser Deposition ◽  
Functional Properties ◽  
Film Growth ◽  
Pulsed Laser ◽  
Complex Oxide ◽  
Laser Deposition ◽  
Layer By Layer ◽  
Interface Magnetism ◽  
Tunable Capacitors

In this chapter we will describe a new development of combinatorial pulsed laser deposition (CPLD) which targets the exploration of interface libraries. The idea is to modulate continuously the composition of interfaces on a few atomic layers in order to alter their functional properties. This unique combinatorial synthesis of interfaces is possible due to very specific PLD characteristics. The first one is its well-known ability for complex oxide stoichiometry transfer from the target to the film. The second one is the layer by layer control of thin film growth at the atomic level using in-situ RHEED characterization. The third one relates to the directionality of the ablated plume which allows for selective area deposition on the substrate using a mobile shadow-mask. However PLD also has some limitations and important PLD aspects to be considered for reliable CPLD are reviewed. Multiple examples regarding the control of interface magnetism in magnetic tunnel junctions and energy band and Schottky barrier height tuning in ferroelectric tunable capacitors are presented.

Microstructure of Compositionally Graded PZT films Grown by Pulsed Laser Deposition

2008 ◽  
Vol 14 (S3) ◽  
pp. 53-56
Author(s):  
S.A.S. Rodrigues ◽  
A. Khodorov ◽  
M. Pereira ◽  
M.J.M. Gomes
Keyword(s):  
Pulsed Laser Deposition ◽  
Lead Zirconate Titanate ◽  
Film Growth ◽  
Pulsed Laser ◽  
Hysteresis Loops ◽  
Lead Zirconate ◽  
Laser Deposition ◽  
Composition Gradient ◽  
Complex Structures ◽  
Pzt Films

Ferroelectric films with a composition gradient have attracted much attention because of their large polarization offset present in the hysteresis loops. Lead Zirconate Titanate (PZT) films were deposited on Pt/TiO2/SiO2/Si substrates by Pulsed Laser Deposition (PLD) technique, using a Nd:YAG laser (Surelite) with a source pulse wavelength of 1064 nm and duration of 5-7 ns delivering an energy of 320 mJ per pulse and a laser fluence energy about 20 J/cm2. The film growth is performed in O2 atmosphere (0,40 mbar) while the substrate is heated at 600°C by a quartz lamp. Starting from ceramic targets based on PZT compositions and containing 5% mol. of excess of PbO to compensate the lead evaporation during heat treatment, three films with different compositions Zr/Ti 55/45, 65/35 and 92/8, and two types of complex structures were produced. These complex structures are in the case of the up-graded structure (UpG), with PZT (92/8) at the bottom, PZT (65/35) on middle and PZT (55/45) on the top, and for down-graded (DoG) one, that order is reversed.

scholarly journals Narrow growth window for stoichiometric, layer-by-layer growth of LaAlO3 thin films using pulsed laser deposition

2016 ◽  
Vol 443 ◽  
pp. 50-53 ◽  
Author(s):  
M. Golalikhani ◽  
Q.Y. Lei ◽  
M.A. Wolak ◽  
B.A. Davidson ◽  
X.X. Xi
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Layer Growth ◽  
Laser Deposition ◽  
Layer By Layer

Comparative Studies of Textured Pulsed Laser Deposition and Sol-Gel Growth of Thin Hydroxyapatite Layers on Titanium Substrates

2006 ◽  
pp. 885-890
Author(s):  
Adele Carradò ◽  
Agnès Fabre ◽  
Laurent Barrallier ◽  
Nathalie Viart ◽  
I.N. Mihailescu ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Comparative Studies ◽  
Sol Gel ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Gel Growth ◽  
Titanium Substrates

scholarly journals Data mining for better material synthesis: The case of pulsed laser deposition of complex oxides

2018 ◽  
Vol 123 (11) ◽  
pp. 115303 ◽  
Author(s):  
Steven R. Young ◽  
Artem Maksov ◽  
Maxim Ziatdinov ◽  
Ye Cao ◽  
Matthew Burch ◽  
...  
Keyword(s):  
Data Mining ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Complex Oxides ◽  
Laser Deposition ◽  
Material Synthesis
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