Reactive Condensation and Magnetic Properties of Iron Oxide Films
Reactive Condensation and Magnetic Properties of Iron Oxide Films
复制标题
氧化铁膜的反应缩合与磁性能
DOI：
10.1143/jjap.17.1037
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发表时间：
1978
影响因子：
1.5
通讯作者：
T. Takada
中科院分区：
文献类型：
--
作者：
Y. Bandō;S. Horii;T. Takada
在低压氧气气氛中蒸发铁制备了α-Fe3O3和Fe3O4等氧化铁薄膜，并通过x射线和电子衍射以及Mössbauer效应测量对其进行了研究。在氧气压力为4×10-4 Torr的条件下，确定了铁氧化物的形成范围作为衬底温度和沉积速率的函数。氧化膜由细小晶粒组成，Fe3O4的晶粒尺寸随着膜厚和衬底温度的增加而增大。研究了其磁性能。随着沉积Fe3O4膜的氧化，矫顽力增加到1000 Oe。简要讨论了高矫顽力的来源。
Films of iron oxides such α-Fe3O3 and Fe3O4 were prepared by evaporating iron in a low pressure atmosphere of oxygen gas and investigated by X-ray and electron diffraction and Mössbauer effect measurements. The formation range of iron oxides was determined as functions of the substrate temperature and the deposition rate at an oxygen pressure of 4×10-4 Torr. The oxide film consisted of fine grains, and the grain size of Fe3O4 increased with increase of the film thickness and the substrate temperature. Magnetic properties were investigated. The coercivity was found to increase up to 1000 Oe with the oxidation of the as-deposited Fe3O4 films. The origin of such high coercivity was briefly discussed.