Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates

Handle URI:
http://hdl.handle.net/10754/552166
Title:
Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates
Authors:
Park, Jihwey; Soh, Yeong-Ah; Aeppli, Gabriel; David, Adrian; Lin, Weinan; Wu, Tao ( 0000-0003-0845-4827 )
Abstract:
The crystal structures of LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates at oxygen pressure of 10−3 millibars or 10−5 millibars, where kinetics of ablated species hardly depend on oxygen background pressure, are compared. Our results show that the interface between LaAlO3 and SrTiO3 is sharper when the oxygen pressure is lower. Over time, the formation of various crystalline phases is observed while the crystalline thickness of the LaAlO3 layer remains unchanged. X-ray scattering as well as atomic force microscopy measurements indicate three-dimensional growth of such phases, which appear to be fed from an amorphous capping layer present in as-grown samples.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Influence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates 2014, 104 (8):081604 Applied Physics Letters
Journal:
Applied Physics Letters
Issue Date:
24-Feb-2014
DOI:
10.1063/1.4866439
ARXIV:
arXiv:1410.2492
Type:
Article
ISSN:
0003-6951; 1077-3118
Additional Links:
http://scitation.aip.org/content/aip/journal/apl/104/8/10.1063/1.4866439; http://arxiv.org/abs/1410.2492
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPark, Jihweyen
dc.contributor.authorSoh, Yeong-Ahen
dc.contributor.authorAeppli, Gabrielen
dc.contributor.authorDavid, Adrianen
dc.contributor.authorLin, Weinanen
dc.contributor.authorWu, Taoen
dc.date.accessioned2015-05-04T16:28:31Zen
dc.date.available2015-05-04T16:28:31Zen
dc.date.issued2014-02-24en
dc.identifier.citationInfluence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates 2014, 104 (8):081604 Applied Physics Lettersen
dc.identifier.issn0003-6951en
dc.identifier.issn1077-3118en
dc.identifier.doi10.1063/1.4866439en
dc.identifier.urihttp://hdl.handle.net/10754/552166en
dc.description.abstractThe crystal structures of LaAlO3 films grown by pulsed laser deposition on SrTiO3 substrates at oxygen pressure of 10−3 millibars or 10−5 millibars, where kinetics of ablated species hardly depend on oxygen background pressure, are compared. Our results show that the interface between LaAlO3 and SrTiO3 is sharper when the oxygen pressure is lower. Over time, the formation of various crystalline phases is observed while the crystalline thickness of the LaAlO3 layer remains unchanged. X-ray scattering as well as atomic force microscopy measurements indicate three-dimensional growth of such phases, which appear to be fed from an amorphous capping layer present in as-grown samples.en
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/apl/104/8/10.1063/1.4866439en
dc.relation.urlhttp://arxiv.org/abs/1410.2492en
dc.rightsArchived with thanks to Applied Physics Lettersen
dc.titleInfluence of oxygen pressure and aging on LaAlO3 films grown by pulsed laser deposition on SrTiO3 substratesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalApplied Physics Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionLondon Centre for Nanotechnology, University College London, London WC1H 0AH, United Kingdomen
dc.contributor.institutionLondon Centre for Nanotechnology, University College London, London WC1H 0AH, United Kingdomen
dc.contributor.institutionLondon Centre for Nanotechnology, University College London, London WC1H 0AH, United Kingdomen
dc.contributor.institutionDivision of Physics and Applied Physics, Nanyang Technological University, Singapore 637371en
dc.contributor.institutionDivision of Physics and Applied Physics, Nanyang Technological University, Singapore 637371en
dc.contributor.institutionDepartment of Materials, Imperial College London, London SW7 2AZ, United Kingdomen
dc.identifier.arxividarXiv:1410.2492en
kaust.authorWu, Taoen
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