Magnetoresistance effect in the fluctuating-valence BaSmFe_(2)O_(5+w) system
| 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.contributor.department | Department of Chemistry | en |
| dc.date.accessioned | 2018-05-22T14:35:31Z | |
| dc.date.available | 2018-05-22T14:35:31Z | |
| dc.date.issued | 2000 | |
| 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.description.version | Peer reviewed | en |
| dc.format.extent | 1683-1685 | |
| dc.format.mimetype | application/pdf | |
| 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.doi | 10.1063/1.1310170 | |
| 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.identifier.urn | URN:NBN:fi:aalto-201805222335 | |
| 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.subject.keyword | superconductor | |
| dc.title | Magnetoresistance effect in the fluctuating-valence BaSmFe_(2)O_(5+w) system | en |
| dc.type | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä | fi |
| dc.type.version | publishedVersion |