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Growth of SrRuO3 thin films on MgO substrates by pulsed laser ablation

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Singh, S. K., Lees, Martin R., Singh, R. K. and Palmer, Stuart 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. doi:10.1088/0022-3727/35/18/302 ISSN 0022-3727.

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Official URL: http://10.1088/0022-3727/35/18/302

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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, Engineering and Medicine > Science > Physics
Journal or Publication Title: Journal of Physics D - Applied Physics
Publisher: IOP Publishing Inc.
ISSN: 0022-3727
Official Date: 21 September 2002
Dates:
DateEvent
21 September 2002Published
Volume: 35
Number: 18
Number of Pages: 4
Page Range: pp. 2243-2246
DOI: 10.1088/0022-3727/35/18/302
Status: Peer Reviewed
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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