Electrical and thermal transport properties of Dy0.95Pr0.05Ba2(Cu1−x Mx)3O7−δ with (M=Fe, Co, Ni and Zn) bulk superconductors

Geetha, M.; Rao, Ashok; Thukaram, M.; Agarwal, S.K.; Bhatt, Ramesh Chandra; Tyagi, Kriti; Kuo, Y. K.

doi:10.1016/j.ssc.2014.02.007

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“…Samples with nominal composition of Y 1-x Eu x Ba 2 Cu 3 O 7- (x = 0.0, 0.1, 0.3, 0.5, 0.7 and 0.9) were prepared through a solid state heat treatment method using high purity powders (≥ 99.99%) of Y 2 O 3 , Eu 2 O 3 , BaCO 3 and CuO. The mixture of starting materials was calcined in alumina crucibles, firstly at 900C for 24hr, secondly at 920C for 60hr, then grounded, pressed into pellets and finally treated by a heat cycle as follows:  Heated from room temperature to 920C and kept at this temperature for 12hr in air.…”

Section: Experimental Work:-samples Preparationmentioning

confidence: 99%