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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Magnetic and magnetoelastic properties of cobalt-iron amorphous-nanocrystalline pulsed laser deposited thin films
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Magnetic and magnetoelastic properties of cobalt-iron amorphous-nanocrystalline pulsed laser deposited thin films

机译：钴铁非晶纳米晶脉冲激光沉积薄膜的磁和磁弹性性质

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摘要

We prepared pulsed laser deposited planar and cylindrical amorphous-nanocrystalline Co-Fe thin films using the corresponding target with composition Co1-xFex,x = 0,0.02,....,1.0. Their room temperature spontaneous magnetization, M-s (film), was always a fraction of the M-s of the corresponding crystalline alloy, M-s (film) = gamma M-s (crystal): gamma 0.8 for pure Co, gamma approximate to 0.8 for the Co35Fe65 film and gamma,approximate to 0.94 for pure Fe. Their isotropic magnetostriction coefficient, lambda s, was also determined. From pure Co to 30 at.% Fe lambda s values were similar to those corresponding to the crystalline alloys: from pure Co to 4 at.% Fe was negative and of the order of 10(-6); lambda s increased to 10-(5) up to 25 at.% Fe and achieved 10(-4) from 30 at.% Fe to 90 at.% Fe;lambda s decreased to 10(-5) for pure Fe. A chemical short-range order between the Co atoms surrounded by the Fe ones, increasing the magnetic moment of Fe atoms, was used to explain the observed behavior. (c) 2007 Elsevier B.V. All rights reserved.
机译：我们使用组成Co1-xFex，x = 0,0.02，....，1.0的相应靶材，制备了脉冲激光沉积的平面和圆柱形非晶-纳米晶Co-Fe薄膜。它们的室温自发磁化Ms（膜）始终是相应晶体合金Ms（Ms（膜）=γMs（晶体））的分数：纯Co的gamma为0.8，Co35Fe65膜的gamma约为0.8， γ，纯铁约为0.94。还确定了它们的各向同性磁致伸缩系数λs。从纯Co到30 at。％Fe的Lambda值类似于相应的晶体合金：从纯Co到4 at。％Fe的Lambda值为负，约为10（-6）。 λ至25（at）的Fe增加到10-（5）并从30 at。的Fe达到90（at）的Fe获得10（-4）;纯Fe的λ降至10（-5）。用Fe包围的Co原子之间的化学短程顺序（增加了Fe原子的磁矩）来解释观察到的行为。 （c）2007 Elsevier B.V.保留所有权利。

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