ＬａＣｏ_（１３）基及Ｒ_２（Ｆｅ_（１－ｘ）Ｃｏ_ｘ）_（１７－ｙ）Ａｌ_ｙ化合物的结构及磁性ＴｈｅＳｔｒｕｃｔｕｒｅａｎｄＭａｇｎｅｔｉｃＰｒｏｐｅｒｔｉｅｓｏｆＬａＣｏ_（１３）－ＢａｓｅｄＳｙｓｔｅｍｓａｎｄＲ_２（Ｆｅ_（１－ｘ）Ｃｏ_ｘ）_（１７－... Structure and Magnetism of LaCo_ (13) and R_2 (Fe_ (1-x) Co_x) _ (17-y) Al_y Compo......