Si(001)基片上制备的FePt薄膜的性质

Properties of FePt Films Prepared on Si(001) Substrates

磁力显微镜针尖涂层是当下研究的热门,文章重点研究FePt薄膜在Si(001)基片上的性质。MgO隔离层可以防止FePt与Si之间产生扩散。热处理温度的不同将导致薄膜中L10-FePt与A1-FePt的比例不同从而有效控制矫顽力。重点研究MgO与FePt共溅射和MgO与FePt分层沉积对矫顽力的影响。为非磁性物质嵌入磁性涂层控制矫顽力的方式提供了新的途径。同时也为磁力显微镜针尖涂层矫顽力的控制提供了新的方式。

Magnetic field microscopy tip coating is a hot research topic at present. This paper focuses on the properties of FePt thin films on Si(001) substrates. The MgO isolation layer can prevent the diffusion between FePt and Si. The difference in heat treatment temperature will lead to different ratios of L10-FePt to A1-FeP in the films, thus effectively controlling the coercivity. The effect of co-sputtering of MgO and FePt and layered deposition of MgO and FePt on coercivity is mainly studied. It provides a new way to control coercivity by inserting non-magnetic materials into magnetic layer. It also provides a new way to control the coercivity of the tip coating of magnetic force microscope.