• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Symposium on Magnetic Ultrathin Films,Multilayers and Surface --1997 March 31-April 4,1997, San Francisco, California, U.S.A >Observation of an exponential FeSi spacer thickness dependence of the antiferromagnetic exchange coupling in Fe/Si-based multilayers
【24h】

Observation of an exponential FeSi spacer thickness dependence of the antiferromagnetic exchange coupling in Fe/Si-based multilayers

机译：Fe / Si基多层膜中反铁磁交换耦合对FeSi间隔物厚度的指数依赖性的观察

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The magnetic interlayer exchange coupling in Fe/Si-based thin film structures employing sputtered multilayers with variations of Si-alloyed Fe for the magnetic layers and Fe-alloyed Si spacers, as well as wedge-shaped MBE-grown Fe/Si/Fe sandwich samples has been systematically studied. From structural and magnetic analysis it is concluded that ultrathin Si and Fe_xSi100-x (x<50) spacer layers transform into a crystalline iron silicide with a composition close to Fe_50Si_50. The exchange coupling mediated by this metallic silicide is antiferromagnetic and depends on the spacer thickness in an exponential, i.e. non-oscillatory, manner with a universial characteristic decay length of 3-4 A at room temperature. This observation can be qualitatively explained within the framework of a recent coupling theory on the premise that the FeSi interlayer has the metastable CsCl(B2)-structure.
机译：Fe / Si基薄膜结构中的磁性层间交换耦合，该结构使用具有多层Si合金化Fe的溅射多层作为磁性层和Fe合金化的Si隔离层，以及楔形MBE生长的Fe / Si / Fe三明治样本已得到系统地研究。从结构和磁性分析得出的结论是，超薄的Si和Fe_xSi100-x（x <50）隔离层转变为组成接近Fe_50Si_50的结晶硅化铁。由该金属硅化物介导的交换偶合是反铁磁性的，并且取决于间隔物的厚度，即在室温下具有3-4A的普遍特征衰减长度的指数方式即非振荡方式。在FeSi中间层具有亚稳CsCl（B2）结构的前提下，可以在最近的耦合理论的框架内定性地解释这种观察。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号