ISSN:
0392-6737
Keywords:
Superconducting materials
;
Material effects onT c,K, critical currents (including impurities, ion implantation etc.)
;
Decomposition reactions (pyrolisis dissociation and group ejection)
;
Conference proceedings
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary Polycrystalline YBCO was prepared by a pyrolytic process starting from citrate and tartrate precursors. The effect of the precursor on the superconducting properties was investigated by means of magnetic measurements using a SQUID magnetometer, a Vibrating-Sample Magnetometer and an a.c. susceptometer. The critical temperature is not affected by the type of precursor (T c=85 K for both). On the other hand, the precursor plays an important role on the critical current density, which is found to be an order of magnitude higher in the sample obtained from citrates (J c(77K,H=0)=2.3·104 A/cm2 and 103 A/cm2 for the from-citrate and from-tartrate sample, respectively).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02462160
