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

J. M. Meldrim, R. D. Kirby, M. J. Devries, John A Woollam, David J Sellmyer

Research output: Contribution to journalArticle

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/Ft multilayers were then deposited by DC-magnetron sputtering. The garnet thickness was held constant at 1000Å while the Co/Pt multilayer had the form of [3ÅCo/9ÅPt] 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)1988-1990
Number of pages3
JournalIEEE Transactions on Magnetics
Volume34
Issue number4 PART 1
DOIs
StatePublished - Dec 1 1998

Fingerprint

Dysprosium
Magnetooptical effects
dysprosium
Garnets
magneto-optics
garnets
Multilayers
Iron
iron
Magnetron sputtering
magnetron sputtering
Bismuth
Rapid thermal annealing
ellipticity
Coercive force
Aluminum
figure of merit
bismuth
coercivity
Large scale systems

Keywords

  • Cobalt
  • Garnet
  • Magneto-optic
  • Platinum

ASJC Scopus subject areas

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

Cite this

Magnetic and magneto-optic study of a layered Co/Pt - dysprosium-iron-garnet system. / Meldrim, J. M.; Kirby, R. D.; Devries, M. J.; Woollam, John A; Sellmyer, David J.

In: IEEE Transactions on Magnetics, Vol. 34, No. 4 PART 1, 01.12.1998, p. 1988-1990.

Research output: Contribution to journalArticle

Meldrim, J. M. ; Kirby, R. D. ; Devries, M. J. ; Woollam, John A ; Sellmyer, David J. / Magnetic and magneto-optic study of a layered Co/Pt - dysprosium-iron-garnet system. In: IEEE Transactions on Magnetics. 1998 ; Vol. 34, No. 4 PART 1. pp. 1988-1990.
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