Enhancement of magneto-optical Kerr effects

Liang Yao Chen, William A. McGahan, Z. S. Shan, D. J. Sellmyer, John A. Woollam

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


A general expression for the magneto-optical polar Kerr effect is given for a bilayered configuration in which the optical constants of the two media differ. The equation shows that a giant enhancement of the Kerr effect in magneto-optical/metallic bilayers can be expected if the dielectric constants of the two materials are low or are matched well to the other. An explicit equation is also given to calculate the spectral enhancement due to a dielectric overcoating on magnetic substrates. An example is given for SiO-coated Dy/Co compositionally modulated alloys, yielding a good comparison to the experimental results in both the transparent and absorbing spectral regions of SiO.

Original languageEnglish (US)
Pages (from-to)5337-5339
Number of pages3
JournalJournal of Applied Physics
Issue number9
StatePublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Enhancement of magneto-optical Kerr effects'. Together they form a unique fingerprint.

Cite this