反钙钛矿结构Mn3XN(X=Cu,Ni)薄膜的制备及其磁相变和电输运特性研究

项目名称： 反钙钛矿结构Mn3XN(X=Cu,Ni)薄膜的制备及其磁相变和电输运特性研究

项目编号： No.51201150

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 金属材料学科

项目作者： 纳元元

作者单位： 云南大学

项目金额： 25万元

中文摘要： 反钙钛矿结构的Mn3XN材料,特别是Mn3CuN和Mn3NiN两类材料具有丰富的物理特性，如磁致伸缩、近零电阻温度系数、磁阻效应等，其电、磁输运和热膨胀性质紧密相关，彼此影响。相应的二维Mn3XN薄膜材料的物理性能同样值得期待。本课题拟在前期研究的基础上，利用磁控溅射方法，通过选择不同的制备参数和后退火处理制备出具有单一反钙钛矿结构的Mn3XN(X=Cu,Ni)系列薄膜，探讨其磁相变、电输运特性的变化规律。另外，Cu、Ni两元素的互掺杂可以进一步诱导这种变化，实现对其磁相变和电输运性质的调控。这使研究具有单一反钙钛矿结构的Mn3XN(X=Cu,Ni)薄膜其制备工艺、微观成分与性能的关联关系，实现Mn3XN材料的可控制备成为可能。同时对该类材料的特殊物性和产生机理更加系统深入地认识，为将来开发具有多种功能特性的Mn3XN薄膜奠定了实验基础和理论依据。

中文关键词： 薄膜；磁控溅射；结构；磁性材料；

英文摘要： The antiperovskite structure Mn3XN materials, especially, Mn3CuN and Mn3NiN exhibit plenty of physical properties, such as magnetostriction, near zero temperature coefficient of resistivity, magnetoresistance effects, and so on. Their electronic and magnetic transport and thermal expansion properties are closely related and influence with each other. The physical properties of the correspoonding 2D Mn3XN thin film materials are also worthy of waited.On the basis of preliminary studies, the series of Mn3XN(X=Cu,Ni)thin films with single antiperovskite structure will be prepared by magnetron sputtering in this subject.Their magnetic phase transition and the variation of the electronic transport properties would be measured and investigated by selecting different preparation processes and anealing treatment method. On the other hand, the mutual doping of Cu and Ni can further leads to the variation and to achieve the adjustment of their magnetic phase transition and electronic transport properties. The study on the relationship among the preparation process, microscopic composition and properties of a single antiperovskite structure Mn3XN(X=Cu,Ni)thin films make its controllable preparation possible. At the same time, more systematically and deeply understanding of the special physical properties and the mechanism

英文关键词： Thin films；magnetron sputtering；structural；magnetic materials；