Thickness effects on the magnetic hysteresis of Co-Pt films
Thickness effects on the magnetic hysteresis of Co-Pt films
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厚度对Co-Pt薄膜磁滞的影响
DOI：
10.1016/0304-8853(93)90443-6
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发表时间：
1993
影响因子：
2.7
通讯作者：
S. Shah
中科院分区：
文献类型：
--
作者：
A. Tsoukatos;H. Wan;G. Hadjipanayis;Yong Zhang;M. Waite;S. Shah
研究了 x=40,45 和 50 at% 的 CoxPt100−xfilm 的磁性和结构特性。磁性研究的重点是磁滞对薄膜厚度的依赖性。样品厚度在 10 至 200 nm 之间变化。对于所研究的所有组合物，生长时的无序面心立方结构薄膜的矫顽力并没有随厚度变化太大。在 650 和 700°C 退火后，结构转变为有序面心四方 (fct) 相，该相具有高各向异性，导致大矫顽力，对所有研究的成分显示出明显的厚度依赖性。
The magnetic and structural properties of CoxPt100−xfilms withx=40,45 and 50 at%, have been investigated. The magnetic studies were focused on the dependence of magnetic hysteresis on the film thickness. The sample thicknesses varied between 10 and 200 nm. The coercivities of the as-grown, disordered fcc structure films did not change very much with thickness for all compositions studied. Upon annealing at 650 and 700°C, a structural transformation takes place to the ordered face centered tetragonal (fct) phase which has a high anisotropy resulting in large coercivities that show a pronounced thickness dependence for all the compositions studied.