Magnetoresistance effect in the fluctuating-valence BaSmFe[sub 2]O[sub 5+w] system

Nakamura, J.; Lindén, J.; Karppinen, Maarit; Yamauchi, H.

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dc.contributor	Aalto-yliopisto	fi
dc.contributor	Aalto University	en
dc.contributor.author	Nakamura, J.
dc.contributor.author	Lindén, J.
dc.contributor.author	Karppinen, Maarit
dc.contributor.author	Yamauchi, H.
dc.date.accessioned	2015-10-13T09:01:31Z
dc.date.available	2015-10-13T09:01:31Z
dc.date.issued	2000
dc.identifier.citation	Nakamura, J. & Lindén, J. & Karppinen, Maarit & Yamauchi, H. 2000. Magnetoresistance effect in the fluctuating-valence BaSmFe[sub 2]O[sub 5+w] system. Applied Physics Letters. Volume 77, Issue 11. 1683-1685. ISSN 0003-6951 (printed). DOI: 10.1063/1.1310170.	en
dc.identifier.issn	0003-6951 (printed)
dc.identifier.uri	https://aaltodoc.aalto.fi/handle/123456789/18010
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	en
dc.language.iso	en	en
dc.publisher	AIP Publishing	en
dc.relation.ispartofseries	Applied Physics Letters	en
dc.relation.ispartofseries	Volume 77, Issue 11
dc.rights	© 2000 AIP Publishing. This is the accepted version of the following article: Nakamura, J. & Lindén, J. & Karppinen, Maarit & Yamauchi, H. 2000. Magnetoresistance effect in the fluctuating-valence BaSmFe[sub 2]O[sub 5+w] system. Applied Physics Letters. Volume 77, Issue 11. 1683-1685. ISSN 0003-6951 (printed). DOI: 10.1063/1.1310170, which has been published in final form at http://scitation.aip.org/content/aip/journal/apl/77/11/10.1063/1.1310170.	en
dc.subject.other	Chemistry	en
dc.subject.other	Physics	en
dc.title	Magnetoresistance effect in the fluctuating-valence BaSmFe[sub 2]O[sub 5+w] system	en
dc.type	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä	fi
dc.description.version	Peer reviewed	en
dc.rights.holder	AIP Publishing
dc.contributor.school	Kemian tekniikan korkeakoulu	fi
dc.contributor.school	School of Chemical Technology	en
dc.contributor.department	Kemian laitos	fi
dc.contributor.department	Department of Chemistry	en
dc.subject.keyword	ferrimagnetism	en
dc.subject.keyword	magnetoresistance	en
dc.subject.keyword	Curie point	en
dc.identifier.urn	URN:NBN:fi:aalto-201510134598
dc.type.dcmitype	text	en
dc.identifier.doi	10.1063/1.1310170
dc.type.version	Final published version	en

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