Magnetoresistance effect in the fluctuating-valence BaSmFe_(2)O_(5+w) system

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Nakamura, J. Linden, J. Karppinen, M. Yamauchi, H. 2018-05-22T14:35:31Z 2018-05-22T14:35:31Z 2000
dc.identifier.citation Nakamura , J , Linden , J , Karppinen , M & Yamauchi , H 2000 , ' Magnetoresistance effect in the fluctuating-valence BaSmFe_(2)O_(5+w) system ' APPLIED PHYSICS LETTERS , vol 77 , no. 11 , pp. 1683-1685 . DOI: 10.1063/1.1310170 en
dc.identifier.issn 0003-6951
dc.identifier.issn 1077-3118
dc.identifier.other PURE UUID: 4d727f2a-d5c5-4f30-ad77-5c936d3bd7f7
dc.identifier.other PURE ITEMURL:
dc.identifier.other PURE FILEURL:
dc.description.abstract The occurrence of negative magnetoresistance (MR) in semiconductive BaSmFe2O5+w double-perovskite samples is demonstrated. A peak in the MR value was observed at the Verwey–type transition temperature. The transition signifies the charge separation of the Fe2.5+ fluctuating mixed valence state into high-spin Fe2+ and Fe3+. The samples were ferrimagnetic with a Curie temperature of ∼710 K. Upon oxidizing/reducing the samples the size of the MR peak and the temperature at which the peak occurred varied. The largest MR value observed was 1.4% at 7 T. en
dc.format.extent 1683-1685
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries APPLIED PHYSICS LETTERS en
dc.relation.ispartofseries Volume 77, issue 11 en
dc.rights openAccess en
dc.title Magnetoresistance effect in the fluctuating-valence BaSmFe_(2)O_(5+w) system en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Chemistry en
dc.subject.keyword superconductor
dc.identifier.urn URN:NBN:fi:aalto-201805222335
dc.identifier.doi 10.1063/1.1310170
dc.type.version publishedVersion

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