Magnetic and magneto-optic study of a layered Co/Pt - dysprosium-iron-garnet system

J. M. Meldrim, R. D. Kirby, M. J. DeVries, J. A. Woollam, D. J. Sellmyer

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

We have studied the effects of placing Co/Pt multilayers on dysprosium-iron-garnet doped with bismuth and aluminum. The garnet was deposited by RF-magnetron sputtering and crystallized by rapid thermal annealing. The Co/Pt multilayers were then deposited by DC-magnetron sputtering. The garnet thickness was held constant at 1000 angstroms while the Co/Pt multilayer had the form of [3 angstroms Co/9 angstroms Pt]n with n ranging from 1 to 16. Coercivities of the samples ranged from about 300 to 2000 Oe. Kerr rotations were as high as 1.8 ° and ellipticities up to 2 ° depending upon the wavelength of light and the number of Co/Pt bilayers. Magneto-optic signal figures of merit are determined for several of these composite systems.

Original languageEnglish (US)
Pages (from-to)1991-1993
Number of pages3
JournalIEEE Transactions on Magnetics
Volume34
Issue number4 pt 1
DOIs
StatePublished - Jul 1 1998
EventProceedings of the 1998 7th Joint Magnetism and Magnetic Materials - International Magnetics Conference. Part 1 (of 2) - San Francisco, CA, USA
Duration: Jan 6 1998Jan 9 1998

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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