The Effect of Using Different Y2O3 Layers on the Activation Energy and Irreversibility Line of MPMG YBCO Bulk at 1050 °C Growth Temperature
Yazarlar (3)
Öğr. Gör. Dr. Sedat KURNAZ Kastamonu Üniversitesi, Türkiye
Doç. Dr. Bakiye Çakır Artvin Çoruh Üniversitesi, Türkiye
Prof. Dr. Alev Aydıner Karadeniz Teknik Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Superconductivity and Novel Magnetism (Q3) | ||
| Dergi ISSN | 1557-1939 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 02-2018 |
| Cilt / Sayı / Sayfa | 31 / 10 / 3167–3174 | DOI | 10.1007/s10948-017-4551-1 |
| Makale Linki | http://dx.doi.org/10.1007/s10948-017-4551-1 | ||
| UAK Araştırma Alanları |
Süper İletken Malzemeler
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| Özet |
| In this study, three kinds of YBCO samples which are named Y1, Y2 and Y3 were fabricated by a melt–powder–melt–growth (MPMG) method. The Y1 sample was placed into a platinum (Pt) crucible without Y2O3, the Y2 sample was located on a Al2O3 crucible with a freely poured Y2O3 powder and the Y3 sample was located on a Al2O3 crucible with a 1-mm-thick buffer layer of Y2O3. YBCO samples were investigated by magnetoresistivity (ρ–T) measurements in dc magnetic fields (parallel to the c-axis) up to 5 T. The effect of the Y2O3 layer on the activation energy and irreversible flux of the samples was studied. The activation energies (U) were determined using the Arrhenius activation energy law from ρ–T. The power law relationship for U with H−α was investigated. α was calculated to find out which defects were dominant in the samples. Irreversibility fields (Hirr) and upper critical fields (Hc2) were obtained … |
| Anahtar Kelimeler |
| Activation energy | Giant flux creep | Irreversibility field | MPMG method | Pinning mechanism | Vortex glass | Vortex liquid | Y2O3 layer |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 5 |
| Scopus | 6 |
| Google Scholar | 6 |