Solid State Science and Technology, Vol. 11, No 1 (2003) 59-65




M. M. Dihom, S. A. Halim*, S. K. Chen, I. Hamadneh, Z. Gebrel, W. M. Mat Yunus ,A.W. Zaidan  and W. M. Daud. Department of Physics,

Faculty of Science and Environmental Studies

Universiti Putra Malaysia

43400 Serdang, Selangor, Malaysia




We have performed a study on the superconducting properties of Y1-xMnxBa2Cu3O7-δ with various Mn doping (x = 0.00, 0.25, 0.30, 0.35, 0.40 and 0.45). All of the samples displayed significant Meissner effect. XRD patterns indicate the existence of unknown peaks belonging to the impurities. A decrease in grain size as the concentration of Mn increases was observed from the SEM micrographs. The resistivity results showed the shifting in TC(R=0) towards low temperature as the Mn concentration increases.



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