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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Effect of rapid thermal annealing on the structure, microstructure and magnetic properties of Fe thin films
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Effect of rapid thermal annealing on the structure, microstructure and magnetic properties of Fe thin films

机译：快速热退火对Fe薄膜结构，微观结构和磁性的影响

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摘要

This paper reports the structure, microstructure and magnetic properties of as-deposited and rapid thermal annealed Fe thin films Rapid thermal annealing was carried out at 550 degrees C for different time intervals such as 2, 5, 10, 20 and 30 min. The as-deposited and rapid thermal annealed films were found to exhibit A2 type bcc structure. However, microstructural studies indicated formation of Fe-Si phase for the annealed Fe films Surface roughness estimated from atomic force microscopy studies displayed an increase in surface roughness with increase in annealing time. Room temperature magnetization studies showed a predominant in-plane magnetic anisotropy for all the films In addition to this presence of strong out-of-plane anisotropy coupled with in-plane magnetization was clearly evidenced from the considerable increase in the out-of-plane coercivity with increase in annealing time. Magnetic force microscopy studies further confirmed the presence of out-of-plane magnetic anisotropy. Magnetic domain imaging studies showed long period band domain patterns with 180 degrees domain wall for the as-deposited film. The band domains were found to get branched with increase in annealing time. From the hysteresis loops and domain imaging studies it was clear that the magnetization reversal is dominated by domain wall motion.
机译：本文报道了沉积的沉积和快速热退火的Fe薄膜的结构，微观结构和磁性，在550℃下以2,5,10,20和30分钟的不同时间间隔进行快速热退火。发现沉积的和快速的热退火薄膜表现出A2型BCC结构。然而，微观结构研究表明，从原子力显微镜研究估计的退火Fe膜表面粗糙度的形成表明表面粗糙度的增加随着退火时间的增加而显示。室温磁化研究对于所有薄膜外，除了这种强大的平面外各向异性外面的存在外，可以从平面外矫顽力的相当大增加显着证明随着退火时间的增加。磁力显微镜研究进一步证实存在面外磁各向异性。磁域成像研究显示了具有180度的用于沉积膜的长周期带域图案。发现带域的分支随着退火时间的增加而得到分支。从滞后环和域成像研究显然，磁化反转是由畴壁运动主导的。

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