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| Content Provider | Springer Nature Link |
|---|---|
| Author | Dreifus, D. Oliveira, A. J. A. Rosario, A. V. Pereira, E. C. |
| Copyright Year | 2012 |
| Abstract | Diluted Magnetic Oxide Semiconductors (DMOS) are oxides that combine two important properties for applications in spintronics: the capacity to control conductivity and ferromagnetism. Obtaining new materials that exhibit simultaneously these behaviors is challenging. In this paper, we investigate whether it is possible to use IrO$_{2}$ and Co:IrO$_{2}$ as a DMOS by studying their magnetic and structural characteristics. The samples were synthesized by the Pechini method, and characterized by X-ray diffraction and magnetization measurements. These samples were doped with 0 to 10 mol% Co concentrations. The X-ray diffraction was analyzed using the Rietveld refinement procedure which showed that all cobalt (Co$^{2+}$) introduced into the IrO$_{2}$ lattice replace Ir$^{4+}$ ions until the dopants concentration of about 10 mol%, and no phase segregation was observed for the highest dopant concentration investigated. Magnetization measurements as a function of temperature and applied magnetic field were performed on these samples. The results show a paramagnetic behavior, despite of the high Co concentration. |
| Starting Page | 2319 |
| Ending Page | 2321 |
| Page Count | 3 |
| File Format | |
| ISSN | 15571939 |
| Journal | Journal of Superconductivity and Novel Magnetism |
| Volume Number | 26 |
| Issue Number | 6 |
| e-ISSN | 15571947 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2012-01-31 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Iridium dioxide Cobalt doped iridium oxide Pechini method Strongly Correlated Systems, Superconductivity Magnetism, Magnetic Materials Condensed Matter Physics Characterization and Evaluation of Materials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Condensed Matter Physics |
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