A complex study in order to define optimal growth conditions for epitaxial Au/Co/Au sandwiches with a strong perpendicular magnetic anisotropy has been performed. The thermally induced evolution of the sandwich morphology, which determines its magnetic properties, was studied by means of reflection high energy electron diffraction (RHEED) and Auger electron spectroscopy (AES). The roughness of Au and Co surfaces, affected by the sample annealing, was evaluated from the length-dependent variance of topography acquired by atomic force microscopy (AFM). The vacuum annealing of an Au layer deposited on the Mo buffer improves significantly its morphology - a temperature of 170 °C is high enough to reduce the roughness more than twice. Gold acts as a surfactant appearing on the top of the Co layer after annealing at 250 °C.
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机译：为了确定具有强垂直磁各向异性的外延Au / Co / Au三明治的外延Au / co / au夹层的最佳生长条件的复杂研究。通过反射高能量电子衍射（RHEER）和螺旋钻电子光谱（AES）研究了确定其磁性的夹心形态的热诱导的施力。受样品退火影响的Au和Co表面的粗糙度从由原子力显微镜（AFM）获得的地形的长度依赖性方差评价。沉积在Mo缓冲液上的Au层的真空退火显着提高了其形态 - 170℃的温度足够高，以减少粗糙度超过两倍。黄金作为在250℃下退火后出现在CO层顶部的表面活性剂。
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