Thermal magnetic relaxation in quasi-two-dimensional Fe films.
Thermal magnetic relaxation in quasi-two-dimensional Fe films.
复制标题
准二维 Fe 薄膜中的热磁弛豫。
作者：
Qiu;Mayer;Gutiérrez;Tang;Walker
用分子束外延方法制备了Fe组分为2单层厚、Ag组分为不同厚度的Fe（110）/Ag（111）超晶格。居里温度高于500 K，穆斯堡尔谱的中心特征是Fe岛的热磁弛豫.磁超精细场具有线性的温度依赖性，这是解释了一个简单的模型的基础上的岛结构的Fe。
Several Fe(110)/Ag(111) superlattices with the Fe component 2 monolayers thick and the Ag component of varying thickness were produced by molecular-beam epitaxy. The Curie temperature was found to be higher than 500 K and a central feature in the M\"ossbauer spectra is shown to come from thermal magnetic relaxation of Fe islands. The magnetic hyperfine field has a linear temperature dependence and this is explained by a simple model based on the island structure of the Fe.