| Yazarlar |
Cabir Terzioğlu
Abant İzzet Baysal Üniversitesi, Türkiye |
|
H Aydın
|
Prof. Dr. Özgür ÖZTÜRK
Kastamonu Üniversitesi, Türkiye |
|
E Bekiroğlu
|
|
İbrahim Belenli
Abant İzzet Baysal Üniversitesi, Türkiye |
| Özet |
| We have investigated the effect of addition of Gd in Bi 1.8Pb0.35Sr1.9Ca2.1Cu 3GdxOy superconductor with x = 0, 0.1, 0.2, 0.3, 0.4 and 0.5. The samples were prepared by standard solid-state reaction methods. The investigation consisted of X-ray diffraction (XRD), scanning electron microscopy (SEM), de electrical resistivity, hole concentration and transport critical current density measurements. Transport measurements indicated that the superconducting transition temperature, transport critical current density and hole concentration values of the samples strongly depend on the Gd addition. The values of Tc, and Jc of the samples decreased with the increase in Gd addition. When Gd addition ratio was increased, surface morphology and grain connectivity of the samples were observed to degrade from SEM investigations and phase ratio of the high-Tc (Bi-2223) phase to the low-Tc (Bi-2212) phase decreased (XRD measurements). The possible reasons for the observed degradation in superconducting and microstructure properties of Bi-2223 due to Gd addition were discussed. © 2008 Elsevier B.V. All rights reserved. |
| Anahtar Kelimeler |
| Gd addition,XRD,SEM,Electrical properties,Hole concentration,Transition temperature |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | Physica B: Condensed Matter |
| Dergi ISSN | 0921-4526 |
| Dergi Tarandığı Indeksler | SCI |
| Makale Dili | İngilizce |
| Basım Tarihi | 10-2008 |
| Cilt No | 403 |
| Sayı | 19 |
| Sayfalar | 3354 / 3359 |
| Doi Numarası | 10.1016/j.physb.2008.04.033 |
| Makale Linki | http://linkinghub.elsevier.com/retrieve/pii/S0921452608002007 |
| Atıf Sayıları | |
| WoS | 39 |
| SCOPUS | 41 |
| Google Scholar | 59 |
