穆斯堡尔谱、X射线吸收谱和光电子能谱研究Fe/Au（111）界面的垂直磁各向异性
Perpendicular magnetic anisotropy at Fe/Au(111) interface studied by Mössbauer, x-ray absorption, and photoemission spectroscopies
摘要：
利用同步辐射穆斯堡尔谱（MS）、X射线磁圆二色性（XMCD）和角分辨光电子能谱（ARPES）研究了Au（111）表面的Fe 3 O 4层中界面垂直磁各向异性（PMA）的起源。为了探测Fe 3 $d$和Au 6 $p$轨道杂化的详细界面电子结构，我们探测了界面邻近效应，它调节Fe的价带电子结构，产生PMA.用MS和XMCD测量分别检测了界面磁结构和轨道磁矩的各向异性。$In$ - $situ$ ARPES也证实了在费米能级附近的Au（111）调制电子态下，Fe在大自旋轨道耦合表面Shockley态上的初始生长。这表明，Fe/Au（111）界面中的PMA源于Fe中的自旋、轨道磁矩和Au中的大自旋轨道耦合之间的协同作用。这些发现为利用具有大自旋轨道相互作用的$p$ - $d$杂化来开发界面PMA铺平了道路。
英文摘要：
The origin of the interfacial perpendicular magnetic anisotropy (PMA) induced in the ultrathin Fe layer on the Au(111) surface was examined using synchrotron-radiation-based Mössbauer spectroscopy (MS), X-ray magnetic circular dichroism (XMCD), and angle-resolved photoemission spectroscopy (ARPES). To probe the detailed interfacial electronic structure of orbital hybridization between the Fe 3$d$ and Au 6$p$ bands, we detected the interfacial proximity effect, which modulates the valence-band electronic structure of Fe, resulting in PMA. MS and XMCD measurements were used to detect the interfacial magnetic structure and anisotropy in orbital magnetic moments, respectively. $In$-$situ$ ARPES also confirms the initial growth of Fe on large spin-orbit coupled surface Shockley states under Au(111) modulated electronic states in the vicinity of the Fermi level. This suggests that PMA in the Fe/Au(111) interface originates from the cooperation effects among the spin, orbital magnetic moments in Fe, and large spin-orbit coupling in Au. These findings pave the way to develop interfacial PMA using $p$-$d$ hybridization with a large spin-orbit interaction.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
