Abstract The magnetic domain structure of Sr3Co2Z hexaferrite related to crystal orientation is investigated by Lorentz microscopy and electron holography. The sample of Sr3Co2Z, prepared by citrate method, was milled in two different crystallographic orientations by focused ion beam. One of them was prepared with its c crystallographic axis direction parallel to the electron beam at the TEM, and the other one, perpendicular to this direction. In both specimens, Lorentz micrographs revealed some structure domain walls e.g. stripes and magnetic flux-closure. Furthermore, phase micrographs acquired by electron holography revealed magnetic domain structures with 145.3° ± 5.2° domain walls.

中文翻译：

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Sr3Co2Z六铁氧体的磁畴结构透射电镜

摘要 利用洛伦兹显微镜和电子全息术研究了与晶体取向相关的Sr3Co2Z六铁氧体的磁畴结构。用柠檬酸盐法制备的 Sr3Co2Z 样品通过聚焦离子束研磨成两种不同的晶向。其中一个的 c 晶轴方向平行于 TEM 中的电子束，另一个垂直于该方向。在这两个样本中，洛伦兹显微照片揭示了一些结构畴壁，例如条纹和磁通闭合。此外，通过电子全息术获得的相位显微照片揭示了具有 145.3°±5.2° 畴壁的磁畴结构。