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Metal-to-insulator transition and magnetic ordering in CaRu1-xCuxO3
dc.creator | Bradarić, Ivica | |
dc.creator | Felner, I | |
dc.creator | Gospodinov, M | |
dc.date.accessioned | 2018-03-01T19:03:56Z | |
dc.date.available | 2018-03-01T19:03:56Z | |
dc.date.issued | 2002 | |
dc.identifier.issn | 2469-9950 | |
dc.identifier.issn | 2469-9969 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/2493 | |
dc.description.abstract | CaRuO3 is a perovskite with an orthorhombic distortion, and is believed to be close to magnetic ordering. Magnetic studies of single-crystal and polycrystalline CaRu1-xCuxO3 (0less than or equal toxless than or equal to15 at. %Cu) reveal that a spin-glass-like transition develops for xless than or equal to7 at. % Cu. The obtained value for the effective magnetic moment p(eff) =3.55 mu(B) for an x=5 at. % Cu single crystal, indicates the presence of Ru5+. At higher Cu concentrations more complex magnetic behaviors are observed. Electrical resistivity measured on polycrystalline samples shows a metal-to-insulator transition at 51 K for only 2-at. % Cu. Charge compensation, which is assumed to be present upon Cu2+/3+ substitution, induces the appearance of Ru5+ and/or the creation of oxygen vacancies in a crystal structure. Since the observed changes in physical properties are completely attributable to the charge compensation, they cannot be related to behaviors of a pure compound where no such mechanism is present. This study provides the criterion for good chemical probes for studying Ru-based perovskites. | en |
dc.rights | restrictedAccess | en |
dc.source | Physical Review B: Condensed Matter and Materials Physics | en |
dc.title | Metal-to-insulator transition and magnetic ordering in CaRu1-xCuxO3 | en |
dc.type | article | en |
dcterms.abstract | Фелнер, И; Господинов, М; Брадарић Ивица; | |
dc.citation.volume | 65 | |
dc.citation.issue | 2 | |
dc.identifier.wos | 000173213100066 | |
dc.identifier.doi | 10.1103/PhysRevB.65.024421 | |
dc.citation.other | Article Number: 024421 | |
dc.identifier.scopus | 2-s2.0-85038308605 |
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