作　　者： ; ; ;

机构地区： 中国石油大学华东物理科学与技术学院

出　　处： 《青岛大学学报（自然科学版）》 2004年第2期59-62,共4页

摘　　要： 采用离子束溅射技术制备了一系列不同含量x的(Ni0.8Co0.2)x Ag1-x颗粒膜样品,并对样品的各向异性磁电阻和巨磁电阻效应进行了研究,在x=0.4的样品中,GMR值达最大值,为-3%,而AMR值在x=0.75时为0.8%。随着NiCo质量分数x的增加,电子输运行为有着一个从GMRAMR的转变。考察其输运性质,试图来更深入地理解各向异性磁电阻和巨磁电阻效应的物理本质。 A series of (Ni_(0.8)Co_(0.2))_x-Ag_(1-x)nano-granular films has been fabricated on glass substrates by an ion-beam sputtering technique. The anisotropic magnetoresistance and giant magnetoresistance effect of the samples were investigated. The GMR value reaches a maximum of-3%at x=0.4, and the AMR reaches 0.8% at x=(0.75.) A transition from GMR to AMR was observed as x rises. In order to understand deeply the physics essence of the anisotropic magnetoresistance and giant magnetoresistance effect, the transport properties were investigated.

关 键 词： 离子束溅射 颗粒膜 各向异性磁电阻 巨磁电阻效应

领　　域： [理学] [理学]