H. LEE 摘要: Magnetic and structural properties of La_0.67Ca_0.33Mn_1-xFe_xO_3(x=0.0÷0.05) powders have been studied with Mossbauer spectroscopy, vibrating sample magnetometer (VSM), and X-ray diffraction. A single phase of the polycrystalline perovskite powder has been prepared using the ...