亚铁磁材料的磁化曲线 英语
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亚铁磁材料的磁化曲线英语
英文回答:
Ferrimagnetic Materials and Their Magnetization Curves.
Ferrimagnetic materials are a type of magnetic material that exhibit a spontaneous magnetic moment, but the magnetic moments of their constituent atoms are not aligned in the same direction. This results in a net magnetic moment that is weaker than that of ferromagnetic materials. Ferrimagnetic materials are commonly used in permanent magnets and magnetic recording devices.
The magnetization curve of a ferrimagnetic material is a graph of the material's magnetization as a function of the applied magnetic field. The magnetization curve for a ferrimagnetic material typically has a sigmoidal shape, with a sharp increase in magnetization at low magnetic fields, followed by a gradual increase in magnetization at higher magnetic fields.
The initial sharp increase in magnetization is due to the alignment of the magnetic moments of the ferrimagnetic material's constituent atoms with the applied magnetic field. As the magnetic field is increased, the magnetic moments of the atoms become more and more aligned, resulting in an increase in the net magnetization of the material.
At high magnetic fields, the magnetization of the ferrimagnetic material reaches a saturation value. This is because all of the magnetic moments of the atoms are aligned with the applied magnetic field, and there is no further increase in magnetization.
中文回答:
亚铁磁材料及其磁化曲线。
亚铁磁材料是一种自发磁矩磁性材料,但其组成原子的磁矩并不沿同一方向排列。
这导致净磁矩弱于铁磁材料。
亚铁磁材料常用于永磁体和磁记录器件。
亚铁磁材料的磁化曲线是材料磁化强度随外加磁场变化的函数
关系图。
亚铁磁材料的磁化曲线通常呈 S 形,在低磁场时磁化强度
急剧上升,然后在高磁场时磁化强度逐渐上升。
磁化强度的最初急剧上升是由于亚铁磁材料中组成原子的磁矩
与外加磁场对齐。
随着磁场增大,这些原子的磁矩变得越来越对齐,导致材料的净磁化强度增加。
在高磁场下,亚铁磁材料的磁化强度达到饱和值。
这是因为所
有原子的磁矩都与外加磁场对齐,并且磁化强度不再增加。