镍单晶膜上氧化镍的配位生长取向关系

对在膜面为(110),(001)和(111)的镍单晶膜上生成的氧化镍取向进行了电子衍射分析,除在(111)和(001)镍膜上肯定了前人已发现的氧化镍与镍的平行取向关系外,还在(110)和(001)镍单晶膜上发现了(111)_NiO∥(001)_Ni,〈110〉_NiO∥〈110〉_Ni取向关系以及〈110〉_NiO∥〈110〉_Ni氧化镍纤维织构。在所有氧化镍与镍的取向关系中均有〈110

THE ORIENTATIONS OF NiO EPITAXIALLY GROWN ON Ni FILMS

The orientations of NiO formed on evaporated Ni single-crystal films with surfaces parallel to (110), (001), or (111) have been studied by means of electron diffraction. Beside that the parallel orientation relationship already known to exist between NiO and Ni has been confirmed, the following NiO textures have been found in the present investigation: <111> texture: (111)_NiO// (001)_Ni, <110>_NiO// <110>_Ni;<110> fibre texture: <110>_NiO//<110>_Ni. It was shown that <110>_NiO//(110>_Ni is common to all orientation relationships between NiO and Ni, thus making it clear that the close-packed direction <110> plays an important role in the epitaxial growth of f.c.c. crystals. The various trends of epitaxial growth of NiO are discussed with respect to the number of <110> directions on the film surface and to the degree of perfection of Ni films.