The effect of using different y2o3 layers on the activation energy and ırreversibility line of mpmg ybco bulk at 1050 degrees c growth temperature
| dc.authorid | 0000-0003-3657-2628 | en_US |
| dc.contributor.author | Kurnaz, Sedat | |
| dc.contributor.author | Çakır, Bakiye | |
| dc.contributor.author | Aydıner, Alev | |
| dc.date.accessioned | 2020-02-07T07:27:28Z | |
| dc.date.available | 2020-02-07T07:27:28Z | |
| dc.date.issued | 2018 | |
| dc.department | AÇÜ, Sağlık Hizmetleri | en_US |
| dc.description.abstract | 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 (?–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 ?–T . The power law relationship for U with H ?? was investigated. ? was calculated to find out which defects were dominant in the samples. Irreversibility fields (Hirr) and upper critical fields (Hc2) were obtained using 10 and 90% criteria of the normal-state resistivity value from ?–T curves. Irreversibility lines (ILs) were estimated from the equation Hirr ? (1?Tirr(H )/Tirr(0))n. The fitting results to giant flux creep and vortex glass models were discussed | |
| dc.identifier.citation | Kurnaz, S., Çakır, B., & Aydıner, A. (2018). The Effect of Using Different Y 2 O 3 Layers on the Activation Energy and Irreversibility Line of MPMG YBCO Bulk at 1050° C Growth Temperature. Journal of Superconductivity and Novel Magnetism, 31(10), 3167-3174. DOI: 10.1007/s10948-017-4551-1. | en_US |
| dc.identifier.doi | 10.1007/s10948-017-4551-1 | |
| dc.identifier.endpage | 3174 | en_US |
| dc.identifier.issue | 10 | en_US |
| dc.identifier.startpage | 3167 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11494/1953 | |
| dc.identifier.volume | 31 | en_US |
| dc.identifier.wosquality | N/A | |
| dc.indekslendigikaynak | Web of Science | |
| dc.institutionauthor | Çakır, Bakiye | |
| dc.language.iso | en | en_US |
| dc.publisher | Springer | en_US |
| dc.relation.ispartof | Journal of Superconductivity and Novel Magnetism | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/closedAccess | en_US |
| dc.subject | MPMG method | en_US |
| dc.subject | Y2O3 layer | en_US |
| dc.subject | Activation energy | en_US |
| dc.subject | Pinning mechanism | en_US |
| dc.subject | Irreversibility field | en_US |
| dc.subject | Vortex glass | en_US |
| dc.subject | Vortex liquid | en_US |
| dc.subject | Giant flux creep | en_US |
| dc.title | The effect of using different y2o3 layers on the activation energy and ırreversibility line of mpmg ybco bulk at 1050 degrees c growth temperature | en_US |
| dc.type | Article |
