相邻Fe和MnAs薄膜的反平行磁取向成像
Imaging the antiparallel magnetic alignment of adjacent Fe and MnAs thin films
摘要：
用X射线光电子显微术研究了Fe/MnAs/GaAs（001）外延系统中Fe与α-MnAs之间的磁耦合。在室温下，MnAs层显示脊和槽，交替的α（磁性）和β（非磁性）相。MnAs的自组织微结构及其产生的杂散场控制Fe和α-MnAs磁化方向之间的局部对准，其主要是反平行的，显著依赖于磁畴尺寸。
英文摘要：
The magnetic coupling between iron and alpha - MnAs in the epitaxial system Fe/MnAs/GaAs(001) has been studied at the sub-micron scale, using element selective x-ray photoemission electron microscopy. At room temperature, MnAs layers display ridges and grooves, alternating alpha (magnetic) and beta (non-magnetic) phases. The self-organised microstructure of MnAs and the stray fields that it generates govern the local alignment between the Fe and alpha - MnAs magnetization directions, which is mostly antiparallel with a marked dependence upon the magnetic domain size.
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