Morphology and domain pattern of epitaxially grown L10 FePt elongated particles

Guoqing Li, Hitoshi Saito, Shunji Ishio, Toshiyuki Shima, Koki Takanashi, Zuhong Xiong

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Morphology and domain pattern of L10 FePt particles were observed by using a magnetic force microscopy (MFM). FePt films with nominal thickness in the range of 5 nm≤tN≤40 nm were grown epitaxially by co-depositing Fe and Pt on MgO (0 0 1) substrates at an elevated temperature. Films were composed of elongated particles. The morphology of film and the domain structure of particle depend on tN. In the range of tN≤8 nm, no multi-domain particles were observed; from tN=10 nm, a few bigger particles become multi-domain. The multi-domain particles have stripe-like domain structures. The relation between morphology and domain structure was discussed by employing a model of isolated rectangular parallelepiped with a stripe-like domain structure.

Original languageEnglish
Pages (from-to)73-79
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume319
Issue number1-2
DOIs
Publication statusPublished - 2007 Dec

Keywords

  • Domain pattern
  • Epitaxially growing
  • L1 FePt particles
  • MFM
  • Morphology

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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