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

doi:10.1109/20.706766

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 journal › Article › peer-review

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 language	English (US)
Pages (from-to)	1988-1990
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	34
Issue number	4 PART 1
DOIs	https://doi.org/10.1109/20.706766
State	Published - 1998

Keywords

Cobalt
Garnet
Magneto-optic
Platinum

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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

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 1000{\AA} while the Co/Pt multilayer had the form of [3{\AA}Co/9{\AA}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.",

keywords = "Cobalt, Garnet, Magneto-optic, Platinum",

author = "Meldrim, {J. M.} and Kirby, {R. D.} and Devries, {M. J.} and Woollam, {J. A.} and Sellmyer, {D. J.}",

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T1 - Magnetic and magneto-optic study of a layered Co/Pt - dysprosium-iron-garnet system

AU - Meldrim, J. M.

AU - Kirby, R. D.

AU - Devries, M. J.

AU - Woollam, J. A.

AU - Sellmyer, D. J.

PY - 1998

Y1 - 1998

N2 - 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.

AB - 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.

KW - Cobalt

KW - Garnet

KW - Magneto-optic

KW - Platinum

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