Structural, electrical, and surface characteristics of La0.5Sr0.5CoO3 thin films prepared by pulsed-laser deposition

被引：0
|
作者：
R.A. Gunasekaran
J.D. Pedarnig
M. Dinescu
机构：
[1] Angewandte Physik,
[2] Johannes-Kepler Universität Linz,undefined
[3] A-4040 Linz,undefined
[4] Austria,undefined
来源：
Applied Physics A | 1999年 / 69卷
关键词：
PACS: 68.55.-a; 81.15.Fg; 73.61.-r;;
D O I：
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中图分类号：
学科分类号：
摘要：
A parametric study of the growth of La0.5Sr0.5CoO3 (LSCO) thin films on (100) MgO substrates by pulsed-laser deposition (PLD) is reported. Films are grown under a wide range of substrate temperature (450–800 °C), oxygen pressure (0.1–0.9 mbar), and incident laser fluence (0.8–2.6 J/cm2). The optimum ranges of temperature, oxygen pressure, and laser fluence to produce c-axis oriented films with smooth surface morphology and high metallic conductivity are identified. Films deposited at low temperature (500 °C) and post-annealed in situ at higher temperatures (600–800 °C) are also investigated with respect to their structure, surface morphology, and electrical conductivity.
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页码：621 / 624
页数：3
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