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Binary glasses having compositions xCuO–(1−x)Bi2O3 (0.15≤x≤0.55) (A1–A5: x:: 0.15, 0.25, 0.35, 0.45, 0.55) are prepared by sol–gel method. Glassy phase is ascertained by powder X-ray diffraction (XRD) studies. Glass transition temperatures, Tg, of the glasses are observed to be ~573K. Magnetic studies on the glasses at 300K in the range ±10kG show weak ferromagnetic nature, and additionally the particular...