Magneto-optic properties of uranium-based compounds

Roger D. Kirby, J. X. Shen, John A Woollam, David J Sellmyer

Research output: Contribution to journalArticle

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Abstract

Uranium-based compounds often show interesting magnetic properties and large polar Kerr rotations. Because of this, the wavelength and temperature dependencies of the polar Kerr rotation in several uranium-based compounds, including UMn2Ge2, UFe2, and UGa2, have been investigated. The Mn moments order ferromagnetically in UMn 2Ge2 below 380 K, and while the U moments do not order ferromagnetically until the temperature is below 150 K. The measurements presented here show that the size of the Kerr rotation increases from 0.05°at room temperature to 0.15°when the U moments are ordered. The wavelength dependence of the Kerr rotation between 500 and 1000 nm is rather weak. UGa2 orders ferromagnetically at 130 K, and a Kerr rotation of 0.2°at 85 K and 632.8 nm can be measured, with the rotation increasing to 0.4°at 1000 nm. UFe2 orders ferromagnetically at 180 K, and the Kerr rotation (85 K, 632.8 nm) is 0.17°. These magnetic and optical properties are discussed in terms of the electronic states of uranium.

Original languageEnglish (US)
Pages (from-to)4574-4576
Number of pages3
JournalJournal of Applied Physics
Volume69
Issue number8
DOIs
StatePublished - Dec 1 1991

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magneto-optics
uranium
moments
magnetic properties
wavelengths
optical properties
temperature
room temperature
electronics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Magneto-optic properties of uranium-based compounds. / Kirby, Roger D.; Shen, J. X.; Woollam, John A; Sellmyer, David J.

In: Journal of Applied Physics, Vol. 69, No. 8, 01.12.1991, p. 4574-4576.

Research output: Contribution to journalArticle

Kirby, Roger D. ; Shen, J. X. ; Woollam, John A ; Sellmyer, David J. / Magneto-optic properties of uranium-based compounds. In: Journal of Applied Physics. 1991 ; Vol. 69, No. 8. pp. 4574-4576.
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