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dc.contributor.author
Fan, Shiyu
dc.contributor.author
Das, Hena
dc.contributor.author
Rébola, Alejandro Federico
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dc.contributor.author
Smith, Kevin
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dc.contributor.author
Mundy, Julia
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Brooks, Charles
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Holtz, Megan E.
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Muller, David A.
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Fennie, Craig J.
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Ramesh, Ramamoorthy
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Schlom, Darrell G.
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McGill, Stephen
dc.contributor.author
Musfeldt, Janice L.
dc.date.available
2023-01-05T13:08:32Z
dc.date.issued
2020-12
dc.identifier.citation
Fan, Shiyu; Das, Hena; Rébola, Alejandro Federico; Smith, Kevin; Mundy, Julia; et al.; Site-specific spectroscopic measurement of spin and charge in (LuFeO3)m/(LuFe2O4)1 multiferroic superlattices; Nature; Nature Communications; 11; 1; 12-2020; 1-9
dc.identifier.issn
2041-1723
dc.identifier.uri
http://hdl.handle.net/11336/183502
dc.description.abstract
Interface materials offer a means to achieve electrical control of ferrimagnetism at room temperature as was recently demonstrated in (LuFeO3)m/(LuFe2O4)1 superlattices. A challenge to understanding the inner workings of these complex magnetoelectric multiferroics is the multitude of distinct Fe centres and their associated environments. This is because macroscopic techniques characterize average responses rather than the role of individual iron centres. Here, we combine optical absorption, magnetic circular dichroism and first-principles calculations to uncover the origin of high-temperature magnetism in these superlattices and the charge-ordering pattern in the m = 3 member. In a significant conceptual advance, interface spectra establish how Lu-layer distortion selectively enhances the Fe2+ → Fe3+ charge-transfer contribution in the spin-up channel, strengthens the exchange interactions and increases the Curie temperature. Comparison of predicted and measured spectra also identifies a non-polar charge ordering arrangement in the LuFe2O4 layer. This site-specific spectroscopic approach opens the door to understanding engineered materials with multiple metal centres and strong entanglement.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Nature
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Multiferroics
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Charge Order
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Spectroscopy
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Superlattices
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
Site-specific spectroscopic measurement of spin and charge in (LuFeO3)m/(LuFe2O4)1 multiferroic superlattices
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-06T21:02:02Z
dc.journal.volume
11
dc.journal.number
1
dc.journal.pagination
1-9
dc.journal.pais
Reino Unido
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dc.description.fil
Fil: Fan, Shiyu. University of Tennessee; Estados Unidos
dc.description.fil
Fil: Das, Hena. Cornell University; Estados Unidos
dc.description.fil
Fil: Rébola, Alejandro Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
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Fil: Smith, Kevin. University of Tennessee; Estados Unidos
dc.description.fil
Fil: Mundy, Julia. Harvard University; Estados Unidos. Cornell University; Estados Unidos
dc.description.fil
Fil: Brooks, Charles. Cornell University; Estados Unidos
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Fil: Holtz, Megan E.. Cornell University; Estados Unidos
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Fil: Muller, David A.. Cornell University; Estados Unidos
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Fil: Fennie, Craig J.. Cornell University; Estados Unidos
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Fil: Ramesh, Ramamoorthy. Lawrence Berkeley National Laboratory; Estados Unidos. University of California at Berkeley; Estados Unidos
dc.description.fil
Fil: Schlom, Darrell G.. Cornell University; Estados Unidos
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Fil: McGill, Stephen. National High Magnetic Field Laboratory; Estados Unidos
dc.description.fil
Fil: Musfeldt, Janice L.. University of Tennessee; Estados Unidos
dc.journal.title
Nature Communications
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.nature.com/articles/s41467-020-19285-9
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/s41467-020-19285-9
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