Superconducting thin films of MgB2 on (001)-Si by pulsed laser deposition

Preprint

9 March 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0103198

Abstract

Superconducting thin films have been prepared on Si-substrates, using pulsed laser deposition from a target composed of a mixture of Mg and MgB2 powders. The films were deposited at room temperature and post-annealed at 600 degrees C. The zero resistance transition temperatures were 12 K, with an onset transition temperature of 27 K. Special care has been taken to avoid oxidation of Mg in the laser plasma and deposited film, by optimizing the background pressure of Ar gas in the deposition chamber. For this the optical emission in the visible range from the plasma has been used as indicator. Preventing Mg from oxidation was found to be essential to obtain superconducting films.

Keywords

All Related Versions

Version 1, 2001-03-09, ArXiv
Published version: Physica C: Superconductivity and its Applications, 353 (1-2).

This publication has 0 references indexed in Scilit: