The effects of the thickness of magnetically hard- and soft-phase layers on magnetic properties and exchange coupling in multilayer magnets

W. Liu, Y. C. Sui, J. Zhou, X. K. Sun, C. L. Chen, Z. D. Zhang, D. J. Sellmyer

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The structure and magnetic properties of multilayer magnets containing a hard phase [HP≡ (Nd0.95 Dy0.05) (Fe,Co,Nb,B)5.5] and a soft phase (SP≡Fe and Fe65 Co35) have been investigated. For the nanocomposite multilayer of Si(substrate)/Ti (30 nm) [HP (x nm) SP (y nm)] nTi (30 nm), the remanence enhancement has been observed at different thickness and volume fractions of hard- and soft-phase layers. The remanence increases and the coercivity decreases with the addition of soft phase, in comparison with the results of the single-layer film. For the multilayer of Si (substrate) Ti (30 nm) [HP (15 nm) Fe (5 nm)] nTi (30 nm) annealed at 575°C for 30 min, the coercivity of the multilayer reaches a maximum at n=20. Effects of the layer thickness and volume fraction of hard- and soft-phase layers on magnetic properties and exchange coupling in the multilayer films have been observed.

Original languageEnglish (US)
Article number10K303
JournalJournal of Applied Physics
Volume97
Issue number10
DOIs
StatePublished - May 15 2005

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magnets
magnetic properties
remanence
coercivity
nanocomposites
augmentation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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The effects of the thickness of magnetically hard- and soft-phase layers on magnetic properties and exchange coupling in multilayer magnets. / Liu, W.; Sui, Y. C.; Zhou, J.; Sun, X. K.; Chen, C. L.; Zhang, Z. D.; Sellmyer, D. J.

In: Journal of Applied Physics, Vol. 97, No. 10, 10K303, 15.05.2005.

Research output: Contribution to journalArticle

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AU - Sun, X. K.

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AU - Zhang, Z. D.

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