Magneto-optical measurement of anisotropy energy constant(s) for amorphous rare earth, transition metal alloys

R. E. Uber, M. Mansuripur

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Optical investigation of magneto-optical films is complementary to conventional torque and VSM magnetometry. In our laboratory we are now measuring anisotropy energy constants of RE-TM thin films at temperatures from ambient to 150°C. An in-plane magnetic field (up to 16.5 KOe) is applied to a saturated sample with perpendicular magnetization. The movement of magnetization away from the perpendicular direction is monitored using the polar Kerr effect. At the HeNe wavelength of 632.8 nm, the Kerr effect is principally due to The top 500 angstroms of the transition metal subnetwork in the films.

Original languageEnglish (US)
Pages (from-to)2461-2463
Number of pages3
JournalIEEE Transactions on Magnetics
Volume24
Issue number6
DOIs
StatePublished - Nov 1988
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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