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dc.contributor.author
Paul, Amitesh
dc.contributor.author
Zandalazini, Carlos Ivan
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dc.contributor.author
Esquinazi, Pablo
dc.contributor.author
Autieri, Carmine
dc.contributor.author
Sanyal, Biplab
dc.contributor.author
Korelis, Panagiotis
dc.contributor.author
Böni, Peter
dc.date.available
2016-12-13T14:31:48Z
dc.date.issued
2014-06
dc.identifier.citation
Paul, Amitesh; Zandalazini, Carlos Ivan; Esquinazi, Pablo; Autieri, Carmine; Sanyal, Biplab; et al.; Structural, electronic and magnetic properties of YMnO3/La0.7Sr0.3MnO3 heterostructures; International Union of Crystallography; Journal Of Applied Crystallography; 47; 3; 6-2014; 1054-1064
dc.identifier.issn
0021-8898
dc.identifier.uri
http://hdl.handle.net/11336/9249
dc.description.abstract
Heterostructures with competing magnetic interactions are often exploited for their tailored new functionalities. Exchange bias is one such outcome of interfacial coupling across ferromagnetic-antiferromagnetic, multiferroic-ferromagnetic, two antiferromagnetic, or antiferromagnetic and paramagnetic interfaces. Apart from the usual horizontal shift of the hysteresis loop (exchange bias shift), a small `vertical shift´ of the hysteresis loops along the magnetization axis has also been seen, but it was always relatively small. Recently, an unusually large `vertical shift´ in epitaxial bilayer heterostructures comprising ferromagnetic La0.7Sr0.3MnO3 and multiferroic orthorhombic YMnO3 layers was reported. Here, using polarized neutron reflectometry, the magnetic proximity effect in such bilayers has been investigated. A detailed magnetic depth profile at the interface, elucidating the intrinsic nature of the vertical shift in such heterostructures, is reported. Further corroboration of this observation has been made by means of first-principles calculations, and the structural and electronic properties of YMnO3/La0.7Sr0.3MnO3 heterostructures are studied. Although in the bulk, the ground state of YMnO3 is an E-type antiferromagnet, the YMnO3/La0.7Sr0.3MnO3 heterostructure stabilizes the ferromagnetic phase in YMnO3 in the interface region. It is found that, in the hypothetical ferromagnetic phase of bulk YMnO3, the polarization is suppressed, and owing to a large difference between the lattice constants in the ab plane a strong magnetocrystalline anisotropy is present. This anisotropy produces a high coercivity of the unusual ferromagnetic YMnO3 phase at the interface, which is responsible for the large vertical shift observed in experiment.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
International Union of Crystallography
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Heterostructures
dc.subject
Ferromagnetic Interactions
dc.subject
Electronic Properties
dc.subject
Epitaxial Bilayers
dc.subject.classification
Física de los Materiales Condensados
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Structural, electronic and magnetic properties of YMnO3/La0.7Sr0.3MnO3 heterostructures
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-12T13:47:30Z
dc.journal.volume
47
dc.journal.number
3
dc.journal.pagination
1054-1064
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Paul, Amitesh. Technische Universitat Munchen; Alemania
dc.description.fil
Fil: Zandalazini, Carlos Ivan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina. University of Leipzig; Alemania
dc.description.fil
Fil: Esquinazi, Pablo. University Of Leipzig; Alemania
dc.description.fil
Fil: Autieri, Carmine. Uppsala University. Department Of Physics And Astronomy; Suecia
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Fil: Sanyal, Biplab. Uppsala University. Department Of Physics And Astronomy; Suecia
dc.description.fil
Fil: Korelis, Panagiotis. Paul Scherrer Institut; Suiza
dc.description.fil
Fil: Böni, Peter. Technische Universitat Munchen; Alemania
dc.journal.title
Journal Of Applied Crystallography
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1107/S1600576714005871
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://scripts.iucr.org/cgi-bin/paper?S1600576714005871
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