Effect of finite interfacial diffusion on microstructure, magnetic properties and hardness of FePt/B4C multilayer thin films

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Fujun Yang
  • Hao Wang
  • Baoyuan Wang
  • Hanbin Wang
  • Changping Yang
  • Mingjie Zhou
  • Quan Li
  • Yat-Ming Chong
  • Yong Jiang

Detail(s)

Original languageEnglish
Article number155310
Journal / PublicationJournal of Physics D: Applied Physics
Volume41
Issue number15
Publication statusPublished - 7 Aug 2008

Abstract

FePt/B4C multilayer films were prepared by magnetron sputtering on a heated Si (1 0 0) substrate. Experimental results suggest that interfacial diffusion of compositional atoms is finite, making the multilayer configuration stable. By changing the FePt layer and B4C layer thickness, the effect of interfacial diffusion on microstructure, magnetic properties and hardness is investigated. As the FePt layer thickness varies from 6 to 12 nm, the coercivity increases quickly from 1.2 to 5.0 kOe which is induced by the increase in pinning sites. At the same time, satisfactory coercivity (6.58 kOe) and hardness (15-19 GPa) are obtained by changing the B4C layer thickness. © 2008 IOP Publishing Ltd.

Citation Format(s)

Effect of finite interfacial diffusion on microstructure, magnetic properties and hardness of FePt/B4C multilayer thin films. / Yang, Fujun; Wang, Hao; Wang, Baoyuan; Wang, Hanbin; Yang, Changping; Zhou, Mingjie; Li, Quan; Chong, Yat-Ming; Zhang, Wen-Jun; Jiang, Yong.

In: Journal of Physics D: Applied Physics, Vol. 41, No. 15, 155310, 07.08.2008.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review