Off-axis electron holography of epitaxial FePt films
Off-axis electron holography of epitaxial FePt films
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外延 FePt 薄膜的离轴电子全息术
DOI：
10.1063/1.366057
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发表时间：
1997
影响因子：
3.2
通讯作者：
R. Marks
中科院分区：
文献类型：
--
作者：
M. McCartney;David R. Smith;R. Farrow;R. Marks
Off-axis electron holography at the nanometer level has been used to investigate the magnetic microstructure of thin epitaxial FexPt1−x (x∼0.5) ordered alloy films. High-resolution electron microscopy in cross section showed high quality epitaxial growth but also revealed some widely spaced regions with structural defects. Lorentz microscopy and off-axis electron holography in field-free conditions established conclusively that similar defective areas were associated with local perturbations of the in-plane magnetic field within the thin films. Further holographic observations with the FePt[001] axis parallel to the film normal revealed variations in phase shifts in the vacuum outside the sample which indicated flux leakage along the film normal. Overall, the results demonstrate that off-axis electron holography is a highly useful technique for mapping local variations of the in-plane magnetic structure associated with defective thin films.
透射电子显微镜
DOI：
10.1007/978-3-319-26651-0_3
发表时间：
2016
期刊：
--
影响因子：
--
作者：
Burke M
通讯作者：
Burke M