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Title: Circular magnetic x-ray dichroism in crystalline and amorphous GdFe{sub 2}

Abstract

The spin-dependent absorption of circularly polarized x rays at the {ital K} edge of Fe and the {ital L}{sub 2} and {ital L}{sub 3} edges of Gd in amorphous and crystalline GdFe{sub 2} has been studied. Large differences in the magnitude of the dichroic signal are observed between the two samples. The application of recently derived sum rules indicates substantial quenching of the orbital moment in the amorphous sample. The results are compared to a theoretical spectrum for crystalline GdFe{sub 2}.

Authors:
; ; ; ;  [1]; ;  [2];  [3]
  1. Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)
  2. Department of Physics, University of Delaware, Newark, Delaware 19716 (United States)
  3. Cornell High Energy Synchrotron Source and Department of Applied Engineering Physics, Cornell University, Ithaca, New York 14853 (United States)
Publication Date:
Research Org.:
Ames National Laboratory
OSTI Identifier:
142593
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 49; Journal Issue: 9; Other Information: PBD: 1 Mar 1994
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GADOLINIUM COMPOUNDS; DICHROISM; IRON COMPOUNDS; X RADIATION; ABSORPTION SPECTRA; CRYSTALS; AMORPHOUS STATE

Citation Formats

Lang, J.C., Wang, X., Antropov, V.P., Harmon, B.N., Goldman, A.I., Wan, H., Hadjipanayis, G.C., and Finkelstein, K.D.. Circular magnetic x-ray dichroism in crystalline and amorphous GdFe{sub 2}. United States: N. p., 1994. Web. doi:10.1103/PhysRevB.49.5993.
Lang, J.C., Wang, X., Antropov, V.P., Harmon, B.N., Goldman, A.I., Wan, H., Hadjipanayis, G.C., & Finkelstein, K.D.. Circular magnetic x-ray dichroism in crystalline and amorphous GdFe{sub 2}. United States. doi:10.1103/PhysRevB.49.5993.
Lang, J.C., Wang, X., Antropov, V.P., Harmon, B.N., Goldman, A.I., Wan, H., Hadjipanayis, G.C., and Finkelstein, K.D.. Tue . "Circular magnetic x-ray dichroism in crystalline and amorphous GdFe{sub 2}". United States. doi:10.1103/PhysRevB.49.5993.
@article{osti_142593,
title = {Circular magnetic x-ray dichroism in crystalline and amorphous GdFe{sub 2}},
author = {Lang, J.C. and Wang, X. and Antropov, V.P. and Harmon, B.N. and Goldman, A.I. and Wan, H. and Hadjipanayis, G.C. and Finkelstein, K.D.},
abstractNote = {The spin-dependent absorption of circularly polarized x rays at the {ital K} edge of Fe and the {ital L}{sub 2} and {ital L}{sub 3} edges of Gd in amorphous and crystalline GdFe{sub 2} has been studied. Large differences in the magnitude of the dichroic signal are observed between the two samples. The application of recently derived sum rules indicates substantial quenching of the orbital moment in the amorphous sample. The results are compared to a theoretical spectrum for crystalline GdFe{sub 2}.},
doi = {10.1103/PhysRevB.49.5993},
journal = {Physical Review, B: Condensed Matter},
number = 9,
volume = 49,
place = {United States},
year = {1994},
month = {3}
}