Enhanced ferrimagnetism in auxetic NiFe2O4 in the crossover to the ultrathin-film limit

Kurzanzeige
dc.contributor.authorHoppe, Michael
dc.contributor.authorDöring, Sven
dc.contributor.authorGorgoi, Mihaela
dc.contributor.authorCramm, Stefan
dc.contributor.authorMüller, Martina
dc.date.accessioned2020-05-29T07:27:15Z
dc.date.available2020-05-29T07:27:15Z
dc.date.issued2015eng
dc.description.abstractWe investigate the sensitive interplay between magnetic, electronic and structural properties in the ferrimagnetic oxide NiFe222O444. Emphasis is placed on the impact of reduced dimensionality in the crossover from bulk-like to ultrathin films. We observed an enhanced saturation magnetization MSSS for ultrathin NiFe2O4 films on Nb-SrTiO3 (001) substrates that co-occurs with a reduced out-of-plane lattice constant under compressive in-plane epitaxial strain. We found a bulk-like cationic coordination of the inverse spinel lattice independent of the NiFe2O4 film thickness -- thus ruling out a cationic inversion that nominally could account for an enhanced MSSS. Our study instead uncovers a reduction of the unit cell volume, i.e. an auxetic behavior in ultrathin NiFe2O4 films, which may result in an enhanced magnetic exchange caused by an increased interatomic electronic localization.eng
dc.description.versionpublishedeng
dc.identifier.arxiv1410.8782eng
dc.identifier.doi10.1103/PhysRevB.91.054418eng
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/49738
dc.language.isoengeng
dc.rightsterms-of-use
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dc.subject.ddc530eng
dc.titleEnhanced ferrimagnetism in auxetic NiFe<sub>2</sub>O<sub>4</sub> in the crossover to the ultrathin-film limiteng
dc.typeJOURNAL_ARTICLEeng
dspace.entity.typePublication
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@article{Hoppe2015Enhan-49738,
  year={2015},
  doi={10.1103/PhysRevB.91.054418},
  title={Enhanced ferrimagnetism in auxetic NiFe<sub>2</sub>O<sub>4</sub> in the crossover to the ultrathin-film limit},
  number={5},
  volume={91},
  issn={2469-9950},
  journal={Physical Review B},
  author={Hoppe, Michael and Döring, Sven and Gorgoi, Mihaela and Cramm, Stefan and Müller, Martina},
  note={Article Number: 054418}
}
kops.citation.iso690HOPPE, Michael, Sven DÖRING, Mihaela GORGOI, Stefan CRAMM, Martina MÜLLER, 2015. Enhanced ferrimagnetism in auxetic NiFe2O4 in the crossover to the ultrathin-film limit. In: Physical Review B. American Physical Society (APS). 2015, 91(5), 054418. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.91.054418deu
kops.citation.iso690HOPPE, Michael, Sven DÖRING, Mihaela GORGOI, Stefan CRAMM, Martina MÜLLER, 2015. Enhanced ferrimagnetism in auxetic NiFe2O4 in the crossover to the ultrathin-film limit. In: Physical Review B. American Physical Society (APS). 2015, 91(5), 054418. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.91.054418eng
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kops.sourcefieldPhysical Review B. American Physical Society (APS). 2015, <b>91</b>(5), 054418. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.91.054418deu
kops.sourcefield.plainPhysical Review B. American Physical Society (APS). 2015, 91(5), 054418. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.91.054418deu
kops.sourcefield.plainPhysical Review B. American Physical Society (APS). 2015, 91(5), 054418. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/PhysRevB.91.054418eng
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source.identifier.issn2469-9950eng
source.periodicalTitlePhysical Review Beng
source.publisherAmerican Physical Society (APS)eng

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