Electrical conductivity and magnetic resistivity in La{sub 0.9}Na{sub 0.1}Mn{sub 0.9}Re{sub 0.1}O{sub 3} crystals
Journal Article
·
· Crystallography Reports
OSTI ID:412030
- Russian Academy of Sciences, Leninskii (Russian Federation)
The study of a ferromagnetic La{sub 0.9}Na{sub 0.1}Mn{sub 0.9}Re{sub 0.1}O{sub 3} ceramic revealed a kink in the temperature dependence of electrical resistivity and pronounced asymmetric peak in the temperature dependence of negative isotropic magnetic resistivity at the same temperature, {approximately}210 K (at the Curie point, {approximately}330 K). At temperatures below 210 K, the magnetic resistivity decreased by an order of magnitude. The comparison of electrical and magnetic measurements indicates a two-phase magnetic state of the crystals. The shift of anomalies in electrical and magnetic resistivities towards temperatures lower than the Curie point is ascribed to the threshold nature of the carrier flow, which allows for the double exchange of carriers in a magnetically multiphase medium. 11 refs., 1 fig.
- OSTI ID:
- 412030
- Journal Information:
- Crystallography Reports, Journal Name: Crystallography Reports Journal Issue: 1 Vol. 40; ISSN CYSTE3
- Country of Publication:
- United States
- Language:
- English
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