International Journal of Chemical Studies
Vol. 1, Issue 6 (2014)
Magnetic studies with the sample obtained from the polymeric precursor technique.
Author(s): Aloke Chattopadhyay
Abstract: From polymeric precursor technique, a material has been achieved which from XRD, SEM & EDS indicates presence of the superconducting material Y1Ba2Cu2.84O6.58, barium oxide and little sodium compound. Moment vs. temperature study and moment vs. field studies at 300K, 77K and 5K have been carried out in this present investigation. M-T plot shows ferromagnetic like behavior at very low temperature but at higher temperature region, ZFC plot is almost parallel with the temperature axis which is in favour of diamagnetism. M-H plots at 77K and 300K indicate a change of the magnetic nature of the substance at 77K from that at 300K, in the presence of a field. M-H plot at 5K is surprising from the point of view of existence of cooper pair because wide fluctuation in moment values is evident in some portions of the plot.
Fig. 1: Moment vs. temperature plots: (i) curve for zero field cooling (ZFC) and (ii) curve for field cooling (FC).
Pages: 21-24 | 1159 Views 32 Downloads
How to cite this article:
Aloke Chattopadhyay. Magnetic studies with the sample obtained from the polymeric precursor technique.. Int J Chem Stud 2014;1(6):21-24.