通过离子辐射得到的平面图案磁介质
1C. Chappert, V. Kottler, T. Devolder, V. Mathet, Institut d'Electronique Fondamentale, Unite de Recherche Associee CNRS 022, Universite Paris Sud, 91405 Orsay Cedex, France. H. Bernas, Centre de Spectrometrie Nucleaire et de Spectromet.
Science (New York, N.Y.)
|June 25, 1998
概括
在不改变表面特征的情况下,-金材料的磁性特性以离子辐射为图案. 这种技术允许精确控制磁性异构和强制力,用于先进的数据存储.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 磁力学 磁力学 是一种
背景情况:
- 磁性材料的图案设计对于开发先进的数据存储技术至关重要.
- 在纳米尺度控制磁性质提出了重大挑战.
- 由于其可调节的磁性特性,- (Co/Pt) 多层是高密度磁性记录的有希望的候选者.
研究的目的:
- 通过电阻面罩使用离子辐射来模拟Co/Pt多层磁性质的可行性.
- 评估离子辐射对Co/Pt材料磁性,光学和表面性能的影响.
- 为了证明这种技术在超高密度磁记录方面的潜力.
主要方法:
- 制造Co/Pt简单的三明治和多层.
- 石版定义的阻力面具的应用.
- 对有图案的Co/Pt材料进行离子辐射.
- 使用近距离和远距离磁光显微镜进行表征.
- 分析磁性特性 (强制力,磁性异质) 和表面特性 (粗度,光学).
主要成果:
- 通过离子辐射成功地在Co/Pt多层中测定了磁性特性.
- 在辐射后,没有观察到表面粗度或光学性能的显著变化.
- 通过调整离子辐射流动性来证明对强制力和磁性异性质的精确控制.
- 在1微米线上使用磁光显微镜可视化图案磁域.
结论:
- 通过电阻面罩进行离子辐射是一种有效的方法,用于模拟Co/Pt材料的磁性.
- 该技术保留了关键的表面和光学特性,使其适合集成到现有的制造工艺中.
- 这种方法为实现超高密度磁记录提供了一条可行的途径,通过使纳米级磁模式成为可能.
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