Method of Measuring Dimensionless Coupling Constant of Magnetic Structure
    3.
    发明申请
    Method of Measuring Dimensionless Coupling Constant of Magnetic Structure 有权
    磁性结构无量纲耦合常数测量方法

    公开(公告)号:US20130009633A1

    公开(公告)日:2013-01-10

    申请号:US13253986

    申请日:2011-10-06

    IPC分类号: G01N27/72

    CPC分类号: G01N27/72

    摘要: In A method for measuring a dimensionless coupling constant of a magnetic structure includes the following steps. A step of applying an external vertical magnetic field is performed for enabling magnetic moments of a RE-TM (Rare Earth-Transition metal) alloy magnetic layer of the magnetic structure to be vertical and saturated. A step of measuring a compensation temperature is performed when the sum of the magnetization of the RE-TM alloy magnetic layer is zero. A step of applying an external parallel magnetic field to the RE-TM alloy magnetic layer is performed. A step of adjusting the temperature of the magnetic structure to the compensation temperature and measuring a hysteresis loop of the magnetic structure under the external parallel magnetic field is performed, wherein the inverse of the slope of hysteresis loop is a dimensionless coupling constant.

    摘要翻译: 用于测量磁性结构的无量纲耦合常数的方法包括以下步骤。 执行施加外部垂直磁场的步骤,以使得磁性结构的RE-TM(稀土 - 过渡金属)合金磁性层的磁矩能够垂直和饱和。 当RE-TM合金磁性层的磁化之和为零时,进行测量补偿温度的步骤。 执行向RE-TM合金磁性层施加外部平行磁场的步骤。 执行将磁性结构的温度调整到补偿温度并在外部并联磁场下测量磁性结构的磁滞回线的步骤,其中磁滞回线的斜率的倒数是无量纲耦合常数。