Structure and magnetism of Pd in Pd/Fe multilayers studied by x-ray magnetic circular dichroism at the Pd L 2,3 sedges
Structure and magnetism of Pd in Pd/Fe multilayers studied by x-ray magnetic circular dichroism at the Pd L 2,3 sedges
复制标题
通过 Pd L 2,3 莎草的 X 射线磁圆二色性研究 Pd/Fe 多层中 Pd 的结构和磁性
DOI：
10.1103/physrevb.55.3663
复制
发表时间：
1997
影响因子：
3.7
通讯作者：
J. Goulon
中科院分区：
文献类型：
--
作者：
J. Vogel;A. Fontaine;V. Cros;F. Petroff;J. Kappler;G. Krill;A. Rogalev;J. Goulon
测量了不同Pd层厚度的Pd/Fe多层膜中Pd的L2，3吸收边。在L3和L2白色线之后观察到的光谱特征表明，在邻近Fe的原子层中，Pd原子具有不同于fcc的局域结构。在这些边缘的X射线磁性圆二色性（XMCD）表明，直接在界面处的原子是强极化的，总磁矩约为0.4 μ B/atom。轨道矩很小（0.0-0.04 μ B）。的XMCD的厚度依赖性表明，Pd原子携带的磁矩从界面到四层。磁界面似乎比晶体学界面大。
We have measured the L 2, 3 absorption edges of Pd in Pd/Fe multilayers with different Pd interlayer thicknesses. The spectral features observed after the L 3 and L 2 white lines indicate that in the atomic layer adjacent to Fe the Pd atoms have a local structure different from fcc. X-ray magnetic circular dichroism (XMCD) at these edges shows that the atoms directly at the interface are strongly polarized with a total moment of about 0.4 μ B/atom. The orbital moments are found to be small (0.0–0.04 μ B). The thickness dependence of the XMCD shows that Pd atoms carry a magnetic moment up to four layers from the interface. The magnetic interface appears larger than the crystallographic one.