Using small-angle neutron scattering to probe the local magnetic structure of perpendicular magnetic recording media

Matthew Peter Wismayer, S L Lee, T Thomson, F Y Ogrin, C D Dewhurst, S M Weekes, R Cubitt

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Small-angle neutron scattering (SANS) has been used to measure the local magnetic structure of perpendicular media consisting of granular CoCrPt-SiOx thin films. The dimensions of the magnetic structures determined by SANS are consistent with the physical grain sizes suggested by transmission electron microscopy measurements, but yield additional information on magnetic structure within the grains, including the existence of a much smaller magnetic core. The results are similar to those recently obtained on longitudinal magnetic recording media, but with the addition of strong interference terms due to the narrower distribution of grain sizes in these samples. (C) 2006 American Institute of Physics.

Original languageEnglish
Pages (from-to)08E707
Number of pages3
JournalJournal of Applied Physics
Volume99
Issue number8
DOIs
Publication statusPublished - 15 Apr 2006

Keywords

  • PERCUS-YEVICK FLUID
  • DISTRIBUTED DIAMETERS

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