期刊信息

  • 刊名: 河北师范大学学报(自然科学版)Journal of Hebei Normal University (Natural Science)
  • 主办: 河北师范大学
  • ISSN: 1000-5854
  • CN: 13-1061/N
  • 中国科技核心期刊
  • 中国期刊方阵入选期刊
  • 中国高校优秀科技期刊
  • 华北优秀期刊
  • 河北省优秀科技期刊

Fe含量对FePt磁性薄膜的微结构和磁特性的影响

  • 1. 河北师范大学物理科学与信息工程学院, 河北石家庄 050016;
    2. 河北建筑工程学院基础部, 河北张家口 075025
  • DOI:

Influence of Fe Content on Microstructural and Magnetic Properties of FePt Nanogranular Films

摘要/Abstract

摘要:

用直流磁控溅射方法和原位退火工艺在玻璃基片上制备了FexPt100-x纳米颗粒膜。研究发现,Fe含量对FePt纳米颗粒膜的微结构和磁特性有很大的影响。矫顽力随Fe含量的增加而增大,当x=48时矫顽力Hc达到了1040 kA/m,样品出现很好的有序化L10结构。扫描探针显微镜(SPM)观察结果显示,所有样品具有横跨数个晶粒的粒状磁畴,Fe48Pt52的粗糙度Ra大约0。6 nm。

Abstract:

FexPt100-x nanogranular films have been fabricated on glass substrates by DC magnetron sputtering and subsequently annealed in situ vacuum.Studies show that the microstrcture and magnetic properties of FePt nanogranular films are greatly affected by the Fe composition.The coercivity(Hc) increases with increasing Fe content,and when Hc reaches 1040 kA/m at x=48,the best L1_0 ordered structure is achieved.Dot-like domains crossing several grains are attained at the films from scanning probe microscope(SPM) images.Roughness is attained about 0.6 nm at Fe48Pt52.