Exchange bias between multiferroic HoMnO3 and ferromagnetic SrRuO3 films
Journal
Journal of Applied Physics
Journal Volume
113
Journal Issue
17
Pages
17D718
Date Issued
2013
Author(s)
Han, T. C.
Abstract
Orthorhombic HoMnO3 (o-HMO) thin films with a-axis orientation are epitaxially grown on ferromagnetic (FM) SrRuO3 (SRO) layers by using pulsed laser deposition. The structural and magnetic properties of o-HMO/SRO heterostructures are measured. The magnetic hysteresis loops of o-HMO/SRO show exchange bias at temperatures below the antiferromagnetic transition temperature of o-HMO. Furthermore, the large exchange bias field up to 815 Oe is observed at 5 K. These results demonstrate that the exchange bias between a FM oxide and the multiferroic o-HMO could be useful for future applications on spintronic devices.
Type
journal article