Issue 40, 2019

Structure and magnetic properties of highly oriented LaBaCo2O5+δ films deposited on Si wafers with Pt/Ti buffer layer

Abstract

Fabrication of highly crystalline oxide films onto silicon wafers has long been a critical obstacle for integrating multi-functional oxides into silicon-based technology. Herein, Pt/Ti is used as a buffer layer for the integration of highly oriented crystalline LaBaCo2O5+δ (LBCO) thin films onto silicon via pulsed laser deposition. LBCO films are highly (00l) oriented with smooth and sharp LBCO/Pt interfaces. The highly oriented LBCO films exhibit a high magnetic transition temperature (TC) and large coercive field (HC) with superparamagnetism over those deposited on single crystal substrates. What is more, the metallic-like behavior with enhanced magnetoresistance is also observed. The opportunity of using a Pt/Ti buffer layer as the growth template opens an alternative route for integrating functional transition metal oxides with tunable magnetic properties into Si-based technology.

Graphical abstract: Structure and magnetic properties of highly oriented LaBaCo2O5+δ films deposited on Si wafers with Pt/Ti buffer layer

Supplementary files

Article information

Article type
Paper
Submitted
13 Aug 2019
Accepted
18 Sep 2019
First published
19 Sep 2019

Phys. Chem. Chem. Phys., 2019,21, 22390-22395

Structure and magnetic properties of highly oriented LaBaCo2O5+δ films deposited on Si wafers with Pt/Ti buffer layer

J. Shaibo, R. Yang, Z. Wang, H. Huang, H. He, Q. Zhang and X. Guo, Phys. Chem. Chem. Phys., 2019, 21, 22390 DOI: 10.1039/C9CP04484A

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