Skip to Main content Skip to Navigation
Journal articles

Magnetization-induced second harmonic generation of light by exchange-coupled magnetic layers

Abstract : A longitudinal magneto-optical Kerr effect and magnetization-induced second-harmonic generation (MSHG) of light (at 2v) have been measured in a SiO2/Fe96Si4/Dy30Fe58Co12/glass exchange-coupled magnetic bilayer system with competitive anisotropies. Theoretical MSHG predictions in this structure that give rise to an effect proportional to magnetization components and that are allowed by an electric dipole mechanism are reported and discussed. The magnitude of the MSHG effect depends on the electric field of the incoming radiation at each interface and on the corresponding incoming (at v) and outgoing (at 2v) Fresnel coefficients. It is demonstrated that transverse pp MSHG selectively probes the magnetization of the first SiO2/Fe96Si4 interface, while transverse sp and longitudinal ps MSHG is sensitive, but less selectively, to the Fe96Si4/Dy30Fe58Co12 interface that supports a planar magnetic domain wall. (p and s are the usual parallel and perpendicular polarizations to the plane of incidence.) The contribution to MSHG by gradient magnetization terms is negligible
Document type :
Journal articles
Complete list of metadatas

Cited literature [28 references]  Display  Hide  Download

https://hal-iogs.archives-ouvertes.fr/hal-00700744
Contributor : Marie-Laure Edwards <>
Submitted on : Wednesday, May 23, 2012 - 5:13:20 PM
Last modification on : Wednesday, September 16, 2020 - 5:37:37 PM
Long-term archiving on: : Thursday, December 15, 2016 - 8:24:43 AM

File

P99.pdf
Publisher files allowed on an open archive

Identifiers

  • HAL Id : hal-00700744, version 1

Citation

L.C. Sampaio, J. Hamrle, V. V. Pavlov, J. Ferré, Patrick Georges, et al.. Magnetization-induced second harmonic generation of light by exchange-coupled magnetic layers. Journal of the Optical Society of America B, Optical Society of America, 2005, 22 (1), pp.119-127. ⟨hal-00700744⟩

Share

Metrics

Record views

323

Files downloads

314