Research Article

Enhanced Magnetization of Sol-Gel Synthesized Pb-Doped Strontium Hexaferrites Nanocrystallites at Low Temperature

Table 1

Values of lattice constants, their axial ratio, unit cell volume ( ), crystallite size ( ), bulk density ( ), X-ray density ( ), porosity ( ), saturation magnetization ( ), remanence ( ), , and coercivity ( ) at ( , 0.1, 0.2, 0.3, and 0.4).

Parameter

(Å)5.8808 5.8856 5.8880 5.88895.8911
(Å)23.2018 23.2193 23.2297 23.236023.2361
3.9453 3.9451 3.9446 3.94573.9443
(nm3)694.8841 696.5439 697.3042 697.8268698.3515
(nm)27.8971 28.4145 28.8917 29.911529.9176
(g/cm3)2.9124 2.9965 3.1623 3.28173.2862
(g/cm3)4.8167 4.8266 4.8615 4.90754.9080
(%)39.53 37.92 34.95 33.1333.04
(emu/g) at 300 K63.22 57.79 53.16 49.6541.62
(emu/g) at 200 K70.77 63.5060.50 53.9348.44
(emu/g) at 300 K33.05 30.62 28.71 25.84 23.66
(emu/g) at 200 K38.20 34.81 33.65 30.9628.84
at 300 K0.52 0.53 0.54 0.550.57
at 200 K0.54 0.55 0.56 0.580.60
(Oe) at 300 K2360 3249 4360 58376015
(Oe) at 200 K3104 3471 4322 49155282