MAGNETIC ALIGNMENT IN 2212-BI-BASED SUPERCONDUCTING SYSTEM .2. BI2SR2CA1-XDYXCU2O8-Y X=0.2 GLASS RECRYSTALLIZED IN 0.6 T MAGNETIC-FIELD

Starting from a glassy precursor, Bi2Sr2Ca1-xDyxCu2O8-y (for x = 0.2) was recrystallized under a 0.6 T magnetic field. After splat quenching , the samples were heated and sintered at different temperatures T-1, then slowly cooled. X-ray diffraction data, sometimes showing 00l peak splitting and electron scanning microscopy pictures, were collected. The results showed that the magnetic field could orient the grains and led to a magnetically textured growth process. Secondary phases forme d in the system during this process were identified by EDX analysis. T he optimum T-1 for texturing was found to be between 930 degrees C and 950 degrees C.