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

Journal Article · Tue Mar 01 04:00:00 EST 1994 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.49.5993· OSTI ID:142593

Lang, J C; Wang, X; Antropov, V P; Harmon, B N; Goldman, A I ^[1]; Wan, H; Hadjipanayis, G C ^[2]; Finkelstein, K D ^[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)

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}.

• Research Organization: Ames National Laboratory
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 142593
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 9 Vol. 49; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
AMORPHOUS STATE
CRYSTALS
DICHROISM
GADOLINIUM COMPOUNDS
IRON COMPOUNDS
X RADIATION