Structural, electrical, and surface characteristics of La0.5Sr0.5CoO3 thin films prepared by pulsed-laser deposition |
| |
Authors: | RA Gunasekaran JD Pedarnig M Dinescu |
| |
Institution: | Angewandte Physik, Johannes-Kepler Universit?t Linz, A-4040 Linz, Austria, AT
|
| |
Abstract: | 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.
Received: 20 November 1998 / Accepted: 6 July 1999 / Published online: 21 October 1999 |
| |
Keywords: | PACS: 68 55 -a 81 15 Fg 73 61 -r |
本文献已被 SpringerLink 等数据库收录! |
|