Singh, S. K., Lees, Martin R., Singh, R. K. and Palmer, S. B.. (2002) Growth of SrRuO3 thin films on MgO substrates by pulsed laser ablation. Journal of Physics D - Applied Physics, 35 (18). pp. 2243-2246. ISSN 0022-3727

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Abstract

SrRuO3 thin films have been grown on MgO substrates using pulsed laser ablation deposition. The orientation of the SrRuO3 films changes from the [001] or [110] direction normal to the substrate surface to become predominantly [100] as the thickness of the SrRuO3 increases from 50 to 360 nm. This leads to a change in the magnetic response of the SrRuO3 films and to a dramatic improvement in the superconducting properties of YBa2Cu3O7-delta films grown on top of the SrRuO3 layer. The domain structures and the surface morphology of SrRuO3 films grown on MgO chan-e as the thickness of the film increases. The 50 nm thick SrRuO3 film grown on an MgO substrate nucleates as rectangular islands, 0.5 to 1 mum in diameter. As the thickness increases to 185 rim, oriented grains similar to1 mum in size are observed. We have noted a different microstructure for the SrRuO3 thin films grown on SrTiO3 substrates. The 185 nm thick SrRuO3 film grown on a SrTiO3 substrate shows a step like growth pattern.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science > Physics
Journal or Publication Title:	Journal of Physics D - Applied Physics
Publisher:	IOP Publishing Inc.
ISSN:	0022-3727
Date:	21 September 2002
Volume:	35
Number:	18
Number of Pages:	4
Page Range:	pp. 2243-2246
Identification Number:	10.1088/0022-3727/35/18/302
Status:	Peer Reviewed
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/10495

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