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首页> 外文期刊>Physica, B. Condensed Matter >Thickness dependence of the magnetic properties of high-coercive Pr-Fe-B thin films with perpendicular magnetic anisotropy
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Thickness dependence of the magnetic properties of high-coercive Pr-Fe-B thin films with perpendicular magnetic anisotropy

机译:垂直磁各向异性的高矫顽力Pr-Fe-B薄膜的磁性与厚度的关系

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摘要

The magnetic properties of Pr-Fe-B films with perpendicular magnetic anisotropy have been studied as a function of thickness varying from 10 to 1200 nm. The crucial thickness for forming the Pr2Fe14B phase is estimated to be about 25 nm in our study, and the perpendicular anisotropy shows a trend to vanish for thick films. The coercivity of the films initially increases with increasing film thickness, gradually reaching a value which is near the value for bulk material. The magnetic domain size increases with increasing thickness. The surface morphology, the roughness and the domain structure of the films have been investigated by means of atomic-force microscopy and magnetic-force microscopy.
机译:已经研究了具有垂直磁各向异性的Pr-Fe-B薄膜的磁性,其厚度随厚度在10到1200 nm之间变化。在我们的研究中,形成Pr2Fe14B相的临界厚度估计约为25 nm,并且垂直各向异性显示出厚膜消失的趋势。膜的矫顽力最初随着膜厚度的增加而增加,逐渐达到接近于块状材料的值。磁畴尺寸随着厚度的增加而增加。通过原子力显微镜和磁力显微镜研究了薄膜的表面形态,粗糙度和畴结构。

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