Magneto-optic and optical characterization of Tb/Co compositionally modulated amorphous films

Liang Yao Chen, Ping He, Suraiya Nafis, William A. McGahan, John A. Woollam, D. J. Sellmyer

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Amorphous Tb/Co compositionally modulated films were deposited on Si substrates with different modulation layer thicknesses ranging from about 2.5 to 15 Å. The nominal Tb to Co layer thickness ratios were systematically varied and the complex refractive index (n and k) and polar magneto-optical Kerr effects (rotation and ellipticity) were measured in the 3000-8000-Å spectral range as well. The samples were divided into two groups. In one group, the thickness of the Co layers was fixed, the Tb layer thickness varied. In the second group, the thickness of the Tb layer was fixed, and that of the Co layer thickness varied. The Kerr rotation and the coercivities of the samples showed very consistent and interesting changes. X-ray diffraction and x-ray fluorescence were also performed on the samples, which revealed layered structures, or compositional modulation, and provided information on the Tb to Co atomic ratios in the samples.

Original languageEnglish (US)
Pages (from-to)5989-5991
Number of pages3
JournalJournal of Applied Physics
Volume69
Issue number8
DOIs
StatePublished - Dec 1 1991

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magneto-optics
modulation
x ray fluorescence
thickness ratio
ellipticity
Kerr effects
coercivity
refractivity
diffraction
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magneto-optic and optical characterization of Tb/Co compositionally modulated amorphous films. / Chen, Liang Yao; He, Ping; Nafis, Suraiya; McGahan, William A.; Woollam, John A.; Sellmyer, D. J.

In: Journal of Applied Physics, Vol. 69, No. 8, 01.12.1991, p. 5989-5991.

Research output: Contribution to journalArticle

Chen, Liang Yao ; He, Ping ; Nafis, Suraiya ; McGahan, William A. ; Woollam, John A. ; Sellmyer, D. J. / Magneto-optic and optical characterization of Tb/Co compositionally modulated amorphous films. In: Journal of Applied Physics. 1991 ; Vol. 69, No. 8. pp. 5989-5991.
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