Pulsed laser deposition of SrTiO3/LaGaO3 and SrTiO3/LaAlO3: Plasma plume effects

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 20 Dec 2010Embargo end date: 01 Jan 2010 Italy English Publisher:AIP PublishingJournal:Applied Physics Letters, volume 97 (issn: 0003-6951, eissn: 1077-3118,

Copyright policy )Funded by:EC | MAMA

Authors: Aruta C; Amoruso S; Bruzzese R; Wang X; Maccariello D; Granozio FM; di Uccio US;

doi: 10.1063/1.3529487 , 10.48550/arxiv.1010.0307

arXiv: 1010.0307

handle: 11588/413678 , 20.500.14243/31043

Pulsed laser deposition of SrTiO3/LaGaO3 and SrTiO3/LaAlO3: Plasma plume effects

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Abstract

The pulsed laser deposition of SrTiO3/LaGaO3 and SrTiO3/LaAlO3 interfaces is analyzed with a focus on the kinetic energy of the ablated species. LaGaO3 and LaAlO3 plasma plumes were studied by fast photography and space-resolved optical emission spectroscopy. Reflection high energy electron diffraction was performed proving a layer-by-layer growth up to 10−1 mbar oxygen pressure. The role of the energetic plasma plume on the two-dimensional growth and on the presence of interfacial defects at different oxygen growth pressures is discussed in connection with the conducting properties of the polar/nonpolar interfaces.

Country

Italy

Related Organizations

Institute for superconductors, oxides and other innovative materials and devices
Italy
University Federico II of Naples
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National Research Council
Sri Lanka
National Research Council
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Keywords

Condensed Matter - Materials Science, SrTiO3, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, laser plume, Pulsed Laser Deposition, Oxides interfaces, oxide interfaces, LaGaO3, Pulsed Laser Deposition; Oxides interfaces; LaserProduced Plasmas, pulsed laser deposition, LaserProduced Plasmas

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