High mobility half-metallicity in the (LaMnO3)2/(SrTiO3)8 superlattice

Handle URI:
http://hdl.handle.net/10754/315744
Title:
High mobility half-metallicity in the (LaMnO3)2/(SrTiO3)8 superlattice
Authors:
Cossu, Fabrizio; Schwingenschlögl, Udo ( 0000-0003-4179-7231 ) ; Singh, Nirpendra ( 0000-0001-8043-0403 )
Abstract:
First principles calculations have been performed to investigate the LaMnO3/SrTiO3 superlattice. Structural relaxation within the generalized gradient approximation results in no significant tiltings or rotations of oxygen octahedra, but in distinct distortions in the SrTiO3 region. Taking into account the onsite Coulomb interaction, we find that the Mn spins order ferromagnetically, in contrast to the antiferromagnetic state of bulk LaMnO3. Most importantly, the interface strain combined with charge transfer across the interface induces half-metallicity within the MnO2 layers. The superlattice is particulary interesting for spintronics applications because the half-metallic states are characterized by an extraordinary high mobility.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computational Physics and Materials Science (CPMS)
Citation:
Cossu F, Singh N, Schwingenschlögl U (2013) High mobility half-metallicity in the (LaMnO3)2/(SrTiO3)8 superlattice. Appl Phys Lett 102: 042401. doi:10.1063/1.4789506.
Publisher:
AIP Publishing
Journal:
Applied Physics Letters
Issue Date:
28-Jan-2013
DOI:
10.1063/1.4789506
Type:
Article
ISSN:
00036951
Additional Links:
http://scitation.aip.org/content/aip/journal/apl/102/4/10.1063/1.4789506
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Computational Physics and Materials Science (CPMS)

Full metadata record

DC FieldValue Language
dc.contributor.authorCossu, Fabrizioen
dc.contributor.authorSchwingenschlögl, Udoen
dc.contributor.authorSingh, Nirpendraen
dc.date.accessioned2014-04-13T12:40:48Z-
dc.date.available2014-04-13T12:40:48Z-
dc.date.issued2013-01-28en
dc.identifier.citationCossu F, Singh N, Schwingenschlögl U (2013) High mobility half-metallicity in the (LaMnO3)2/(SrTiO3)8 superlattice. Appl Phys Lett 102: 042401. doi:10.1063/1.4789506.en
dc.identifier.issn00036951en
dc.identifier.doi10.1063/1.4789506en
dc.identifier.urihttp://hdl.handle.net/10754/315744en
dc.description.abstractFirst principles calculations have been performed to investigate the LaMnO3/SrTiO3 superlattice. Structural relaxation within the generalized gradient approximation results in no significant tiltings or rotations of oxygen octahedra, but in distinct distortions in the SrTiO3 region. Taking into account the onsite Coulomb interaction, we find that the Mn spins order ferromagnetically, in contrast to the antiferromagnetic state of bulk LaMnO3. Most importantly, the interface strain combined with charge transfer across the interface induces half-metallicity within the MnO2 layers. The superlattice is particulary interesting for spintronics applications because the half-metallic states are characterized by an extraordinary high mobility.en
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/apl/102/4/10.1063/1.4789506en
dc.rightsArchived with thanks to Applied Physics Lettersen
dc.titleHigh mobility half-metallicity in the (LaMnO3)2/(SrTiO3)8 superlatticeen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputational Physics and Materials Science (CPMS)en
dc.identifier.journalApplied Physics Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Materials, Imperial College London, London SW7 2AZ, United Kingdomen
dc.contributor.institutionEngineering and Innovation, Open University, Milton Keynes MK7 6AA, United Kingdomen
dc.contributor.institutionInstitute of Materials Physics, University of Münster, Wilhelm-Klemm-Strasse 10, D-48149 Münster, Germanyen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorCossu, Fabrizioen
kaust.authorSingh, Nirpendraen
kaust.authorSchwingenschlögl, Udoen
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