GIANT MAGNETOSTRICTION OF AMORPHOUS TBXFE1-X(0.10-LESS-THAN-X-LESS-THAN-0.45) THIN-FILMS AND ITS CORRELATION WITH PERPENDICULAR ANISOTROPY
GIANT MAGNETOSTRICTION OF AMORPHOUS TBXFE1-X(0.10-LESS-THAN-X-LESS-THAN-0.45) THIN-FILMS AND ITS CORRELATION WITH PERPENDICULAR ANISOTROPY
复制标题
DOI：
10.1103/physrevb.51.297
复制
发表时间：
1995-01-01
影响因子：
3.7
通讯作者：
HERNANDO, A
中科院分区：
文献类型：
--
作者：
HUANG, J;PRADOS, C;HERNANDO, A
通过测量TbxFe1 − x（0.10< x< 0.45）非晶薄膜的垂直各向异性应力导数，研究了TbxFe1 − x（0.10< x< 0.45）非晶薄膜的磁致伸缩行为。发现了大的磁致伸缩值，数量级为10− 3，与在多晶对应物中观察到的值大致相同。在该组成范围内，Tb 45 Fe 55显示出具有相对低的各向异性的大的磁致伸缩，这使其成为用作磁致弹性元件的良好候选者。在低温（175 ℃）退火后，观察到垂直各向异性和磁致伸缩的弛豫.然而，在低Tb含量（x< 0.30）的范围内，弛豫强度特别显著。的松弛行为似乎表明，局部滞弹性应变可能是这种键的各向异性的起源低Tb含量，而额外的结构各向异性可能是负责在较高的Tb含量的膜的各向异性。
The magnetostrictive behavior of amorphous Tb x Fe 1− x (0.10< x< 0.45) thin films was studied by measuring the stress derivative of the perpendicular anisotropy. Large values of the magnetostriction were found, of order 10− 3, about the same as the value observed in their polycrystalline counterparts. Within this composition range, Tb 45 Fe 55 shows a large magnetostriction with a relatively low anisotropy which makes it a good candidate for application as a magnetoelastic element. After annealing at low temperature (175 C), relaxation of both perpendicular anisotropy and magnetostriction was observed. However, the relaxation strength was particularly remarkable in the range of low Tb content (x< 0.30). The relaxation behavior seems to indicate that local anelastic strain may be the origin of this bond anisotropy for low Tb content while additional structural anisotropy is likely to be responsible for the anisotropy in higher Tb content films.