Faraday rotation of bismuth substituted dysprosium iron garnets

Author

Guillot, M. ; Braik, Y. ; Le Gall, H. ; Artinian, M. ; Desvignes, J.M.

Author_Institution

Service Nat. des Champs Intenses, CNRS, Grenoble, France

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3396

Lastpage

3398

Abstract

The Faraday rotation on single crystal garnets of composition Dy _3-xBi_xFe₅O₁₂ with x=0.43 has been investigated in the temperature range 10 K< T<300 K at λ=1150 nm. The data are described in terms of the corresponding sublattice magnetizations assuming that the contribution of the Fe³⁺ ions to Faraday rotation (FR) is the same as for bismuth substituted yttrium garnet (for identical x value). The first order magnetooptical (MO) coefficient (C_e) of the Dy3+ ion is deduced; in the spontaneous state, C_e is linear temperature dependent as previously found in pure DyIG with a decrease of C _e of about 30-50% induced by the presence of bismuth

Keywords

Faraday effect; bismuth compounds; dysprosium compounds; ferrimagnetic properties of substances; garnets; superexchange interactions; 10 to 300 K; 1150 nm; Dy_3-xBi_xFe₅O₁₂; Faraday rotation; first order magneto-optical coefficient; magnetic field dependence; modified superexchange interactions; single crystal garnets; spontaneous state; sublattice magnetizations; temperature dependence; Bismuth; Garnets; Iron; Magnetic anisotropy; Magnetic field measurement; Magnetostriction; Particle beam optics; Perpendicular magnetic anisotropy; Temperature dependence; Temperature distribution;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.280826

Filename

280826