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http://hdl.handle.net/10773/20944
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Dem'yanov, S. E. | pt |
dc.contributor.author | Kalanda, N. A. | pt |
dc.contributor.author | Kovalev, L. V. | pt |
dc.contributor.author | Avdeev, M. V. | pt |
dc.contributor.author | Zheludkevich, M. L. | pt |
dc.contributor.author | Garamus, V. M. | pt |
dc.contributor.author | Willumeit, R. | pt |
dc.date.accessioned | 2017-12-07T20:04:56Z | - |
dc.date.issued | 2013 | pt |
dc.identifier.issn | 1063-7850 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/20944 | - |
dc.description.abstract | A comparative X-ray diffraction study of the initial single-phase metal-oxide compound-strontium iron molybdate Sr2FeMoO6 - delta (SFMO)-and that subjected to additional isothermal annealing shows that this heat treatment leads to the appearance of a SrMoO4 (SMO) phase. Small-angle neutron scattering measurements indicate that the SMO phase forms a dielectric shell surrounding SFMO grains, which has a characteristic thickness of 2-4 nm and extends above 120 nm. The character of the temperature dependence of the electric resistance corresponds to the metal-type conduction in single-phase SFMO and changes to a semiconductor type in the material with SMO dielectric shells, which is evidence of a tunneling mechanism of charge transfer. This conclusion is confirmed by an increase in the absolute value of the negative magnetoresistance of SFMO due to the appearance of a tunneling magnetoresistance component of the same sign. | pt |
dc.language.iso | eng | pt |
dc.publisher | MAIK NAUKA/INTERPERIODICA/SPRINGER | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.rights | restrictedAccess | por |
dc.title | Dielectric barrier formation and tunneling magnetoresistance effect in strontium iron molybdate | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 552 | pt |
degois.publication.issue | 6 | pt |
degois.publication.lastPage | 555 | pt |
degois.publication.title | TECHNICAL PHYSICS LETTERS | pt |
degois.publication.volume | 39 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1134/S1063785013060199 | pt |
dc.identifier.doi | 10.1134/S1063785013060199 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Dielectric barrier formation and tunneling magnetoresistance effect in strontium iron molybdate_10.1134S1063785013060199.pdf | 204.57 kB | Adobe PDF |
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