非晶多层膜Fe/SnO_2的磁特性  

THE MAGNETIC PROPERTIES OF AMORPHOUS Fe/SnO_2 MULTIAYERED FILMS

作　　者：王军华[1] 黄宝歆[2] 张林[2] 张汝贞[2] 张连生[2] 张维咸[2] 

机构地区：[1]潍坊学院实验中心,山东潍坊261043 [2]山东大学物理与微电子学院,济南250100

出　　处：《山东师范大学学报（自然科学版）》2002年第3期34-36,共3页Journal of Shandong Normal University(Natural Science)

基　　金：国家自然科学基金资助项目 (5 93 92 80 0 )

摘　　要：采用高频溅射制备了Fe/SnO2 非晶多层膜 .当SnO2 层厚度ds 固定为 5nm时 ,样品的饱和磁化强度Ms 随Fe层厚度dm 的减小而降低 ,这主要受死层效应和维度效应的影响 .样品在dm 很小时 ,呈现准二维磁性 .样品的居里温度Ic 随dm 的减小而单调下降 .当Fe层固定为 2nm时 ,Ms随dsMagnetic multilayered films of amorphous Fe/SnO 2 have been prepared by rf sputtering method.The magnetic measurements showed that the saturation magnetization M s of the samples decreases with lowering the thickness of Fe layers( d m ) while keeping the thickness of SnO 2 ( d s )as 5 nm.It is due to magnetic dead layers and dimension effect.The samples are in quasi-two-dimensional magnetic state when d m is small.The Curie temperature T c of the samples decreases monotonously with decreasing d m ,and M s increases with decreasing d s while keeping d 2 =2 nm.

关 键 词：非晶多层膜 Fe/SnO2 磁特性 死层效应 维度效应 二维磁性 饱和磁化强度 铁/二氧化锡磁膜 

分 类 号：O484.43[理学—固体物理]