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Enhanced critical current density using Nd2O3 nano-islands on NdBa2Cu3O7–δ thin films prepared by PLD

Published online by Cambridge University Press:  28 March 2013

Erdal Sönmez  and
Mehmet Ertuğrul
Erdal Sönmez*
Affiliation:
K. K. Education Faculty, Department of Physics, Atatürk University, Erzurum, Turkey Graduate School of Natural and Applied Sciences, Department of Nanoscience and Nanoengineering, Advanced Materials Research Laboratory, Atatürk University, 25240 Erzurum, Turkey
Mehmet Ertuğrul
Affiliation:
Graduate School of Natural and Applied Sciences, Department of Nanoscience and Nanoengineering, Advanced Materials Research Laboratory, Atatürk University, 25240 Erzurum, Turkey Engineering Faculty, Department of Electric-Electronic, Atatüsrk University, Erzurum, Turkey
*
ae-mail: [email protected]
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Abstract

In this study, the effect of Nd2O3 nano-islands on the critical properties of NdBa2Cu3O7–δ (Nd-123) superconductive thin films grown on Ni-W metallic substrates was investigated. Nd-123 superconducting ceramic materials were prepared by solid-state reaction technique and then this ceramic material was used as target for producing the Nd-123 superconductive thin films with pulsed laser deposition (PLD). Nano-islands were prepared with the deposition of Nd2O3 by PLD. The obtained superconductive thin films were characterized by X-ray diffraction (XRD) analysis, morphological investigations of atomic force microscopy (AFM) images, transport analysis such as Jc and R-T measurements by four-point probe (FPP). As a result of these analyses, it was determined that nano-islands have important role for the flux pinning and it provides the increase of about 32% for the critical current value (Jc).

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 62 , Issue 1 , April 2013 , 10403
Copyright
© EDP Sciences, 2013

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