Structure and magnetic properties of sputtered (Nd,Dy)(Fe,Co,Nb,B) 5.5/M (M=FeCo,Co) multilayer magnets

W. Liu, Z. D. Zhang, J. P. Liu, X. Z. Li, X. K. Sun, D. J. Sellmyer

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The magnetic properties of nanocomposite multilayer magnets of the (Nd,Dy)(Fe,Co,Nb,B) 5.5/M (M=Co,FeCo) on Ti-buffered Si substrates have been investigated. X-ray diffraction results reveal that the Nd 2Fe 14B-type phase in almost all the films is randomly oriented. Different thickness x (nm) for Co layers and y (nm) for FeCo layers were adopted in the multilayers. It is found that high remanence is achieved in the nanocomposite multilayer films consisting of the Nd 2Fe 14B-type phase and soft magnetic phase for Co with 6≥x≥4 and for FeCo with 10≥y≥6. The enhancement of the remanence in the nanocomposite multilayer films is attributed to the exchange coupling between the magnetically soft and hard phases. Increasing the soft magnetic components results in a continuously decreasing coercivity.

Original languageEnglish (US)
Pages (from-to)7890-7892
Number of pages3
JournalJournal of Applied Physics
Volume91
Issue number10 I
DOIs
StatePublished - May 15 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Structure and magnetic properties of sputtered (Nd,Dy)(Fe,Co,Nb,B) <sub>5.5</sub>/M (M=FeCo,Co) multilayer magnets'. Together they form a unique fingerprint.

Cite this