X-MCD Study of Expanded Lattice Permanent Magnet Materials

• Authors: Cz. Kapusta , R. Mycielski , B. Porębska , D. Ahlers , K. Attenkofer , P. Fischer , G. Schütz
• Languages of publication: EN

Abstracts

EN

X-ray magnetic circular dichroism measurements on the cobalt (iron) K edges and samarium L_{2}, L_{3} edges of Sm_{2}Fe_{17}, Sm_{2}Co_{17} and their interstitial hydrides and nitrides are reported. Normal absorption profiles show considerable changes upon nitriding for iron- and cobalt K edge and for samarium L_{2}, L_{3} edges. Much weaker changes are observed upon hydriding. Similarly, significant differences of X-MCD spectra appear between the host Sm_{2}Fe_{17} (Sm_{2}Co_{17}) and the nitrides, whereas X-MCD signals of the hydrides are similar to those of the hosts. The effects are analysed and discussed in terms of influence of interstitial atom neighbours on the Co(Fe) 4p and Sm 5d electronic bands.

Keywords

EN

78.70.Dm; 75.30.-m

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 91
• Issue: 5
• Pages: 975-979

Dates

published

1997-05

Contributors

author

Cz. Kapusta

• Department of Solid State Physics, University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Cracow, Poland

author

R. Mycielski

• Department of Solid State Physics, University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Cracow, Poland

author

B. Porębska

• Department of Solid State Physics, University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Cracow, Poland

author

D. Ahlers

• Institute of Experimental Physics II, University of Augsburg, 86135 Augsburg, Germany

author

K. Attenkofer

• Institute of Experimental Physics II, University of Augsburg, 86135 Augsburg, Germany

author

P. Fischer

• Institute of Experimental Physics II, University of Augsburg, 86135 Augsburg, Germany

author

G. Schütz

• Institute of Experimental Physics II, University of Augsburg, 86135 Augsburg, Germany