The structure,magnetic and magnetocaloric properties of the Ge-rich Gd5Ge2.05-xSi1.95-xMn2x (x=0.01 and 0.03) alloys were investigated by scanning electron micr
YVO4:Eu nanocrystalline phosphors were successfully prepared at 400 ℃ in equal moles of NaNO3 and KNO3 molten salts.NaOH concentration and annealing temperatur