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Ion Beam Analysis and Electric Properties of GdBa 2 Cu 3 O 7 − δ Added with Nanosized Ferrites ZnFe 2 O 4 and CoFe 2 O 4
| Content Provider | Semantic Scholar |
|---|---|
| Author | Basma, H. Roumié, Mohamad Awad, Ramadan Marhaba, Salem Albast, Mohamad Abualy, Ali |
| Copyright Year | 2015 |
| Abstract | In this study, superconducting samples of type GdBa2Cu3O7−δ added with x wt% (0 ≤ x ≤ 0.4) nanoferrites ZnFe2O4 and CoFe2O4 were prepared by the conventional solid-state reaction technique. The prepared samples were characterized using X-ray powder diffraction (XRD) in order to determine the volume fraction and lattice parameters. The elemental contents of the prepared samples were determined using particle induced X-ray emission (PIXE). In addition, the oxygen-content of these samples was obtained using non-Rutherford backscattering spectroscopy (RBS) at 3 MeV proton beam. It is found that the Oxygen-content of GdBa2Cu3O7−δ phase remains practically constant for low additions of both nanoferrites but it increases with high additions. The electrical resistivity of the prepared samples was measured by the conventional four-probe technique from room temperature down to the zero superconducting transition temperature (T0). An increase in the superconducting transition temperature Tc and the critical current density Jc is observed as x varies from 0.0 to 0.06 wt% of (ZnFe2O4)xGdBa2Cu3O7−δ, followed by a systematic decrease with increasing x. On the other hand, the Tc values for (CoFe2O4)xGdBa2Cu3O7−δ show a systematic decrease with x for both high and low additions while Jc is enhanced up to x = 0.01 wt% and decrease with further increase in x. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://file.scirp.org/pdf/MSA_2015092914305481.pdf |
| Alternate Webpage(s) | http://www.scirp.org/journal/PaperDownload.aspx?downloadType=epub&paperID=60031 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |