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

Nakamura, J.; Linden, J.; Karppinen, M.; Yamauchi, H.

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dc.contributor	Aalto-yliopisto	fi
dc.contributor	Aalto University	en
dc.contributor.author	Nakamura, J.
dc.contributor.author	Linden, J.
dc.contributor.author	Karppinen, M.
dc.contributor.author	Yamauchi, H.
dc.date.accessioned	2018-05-22T14:35:31Z
dc.date.available	2018-05-22T14:35:31Z
dc.date.issued	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 . https://doi.org/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: https://research.aalto.fi/en/publications/4d727f2a-d5c5-4f30-ad77-5c936d3bd7f7
dc.identifier.other	PURE FILEURL: https://research.aalto.fi/files/14765154/1.1310170.pdf
dc.identifier.uri	https://aaltodoc.aalto.fi/handle/123456789/30895
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