Enhanced levitation force of partial melted (Y,Er)Ba2Cu3O7-8 superconductors with formation of minor 211 phase / Ahmad Kamal Yahya, Suzi Ahmad and Imad Hamadneh

Yahya, Ahmad Kamal and Ahmad, Suzi and Hamadneh, Imad (2005) Enhanced levitation force of partial melted (Y,Er)Ba2Cu3O7-8 superconductors with formation of minor 211 phase / Ahmad Kamal Yahya, Suzi Ahmad and Imad Hamadneh. Science Letters, 2 (1). pp. 31-39. ISSN 1675-7785

Abstract

Y0.5 Er 0.5 Ba2 Cu307-8 superconductors with Er2 O3 addition were prepared by partial melting and the effects of excess Er2 03 addition on the magnetic levitation force (MLF) of the partial-melted samples have been investigated. A non-linear relationship was observed between the MLF measured at 77 K and the amount of Er2 O3. It was found that the optimum amount of excess Er2 O3 for enhanced MLF is 10 wt.%. X-ray powder diffraction analysis showed formation of major 123 phase with minor 211 non-superconducting phase for all samples. The results were discussed in detail and the presence of 211 impurities is suggested to act as pinning centers in the 123 samples.

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Metadata

Item Type: Article
Creators:
CreatorsID Num.
Yahya, Ahmad Kamalahmad191@salam.uitm.edu.my
Ahmad, SuziUNSPECIFIED
Hamadneh, ImadUNSPECIFIED
Subjects: Q Science > QC Physics > Electricity and magnetism
Divisions: Faculty of Applied Sciences
Journal or Publication Title: Science Letters
ISSN: 1675-7785
Volume: 2
Number: 1
Page Range: pp. 31-39
Item ID: 11790
Uncontrolled Keywords: Y0.5Er0.5Ba2Cu3O7-8 superconductors, magnetic levitation force, 211 phase
URI: http://ir.uitm.edu.my/id/eprint/11790

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