Hostname: page-component-77c89778f8-m42fx Total loading time: 0 Render date: 2024-07-20T12:34:38.415Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnetic Dichroism in Resonant Photoemission and Photoabsorption from Gd Metal

Published online by Cambridge University Press:  15 February 2011

K. Starke ,
G. Van Der Laan ,
Z. Hu ,
E. Arenholz ,
E. Navas ,
A Bauer ,
A. Mühlig ,
C. S- Langeheine ,
E. Weschke  and
J. Goodkoep
...Show all authors
K. Starke
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
G. Van Der Laan
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
Z. Hu
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
E. Arenholz
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
E. Navas
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
A Bauer
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
A. Mühlig
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
C. S- Langeheine
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
E. Weschke
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
J. Goodkoep
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
N. Brookes
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
G. Kaindl
Affiliation:
Freie Universität Berlin, Institut für Experimentalphysik, Arnimallee 14, D-14195 Berlin-Dahlem, Germany, starke@physik.fii-berlin.de
Get access

Abstract

We report on the study of MCD in resonant PE, using Gd metal as an example. When the photon energy is changed across the Gd 4d → 4ƒ excitation region, the PE-MCD spectrum varies substantially. Based on atomic-multiplet theory, we present a consistent picture of MCD in resonant 4d → 4ƒ PE and x-ray absorption at the 4d-edge, where all spectral changes can be explained by the angular-momentum of the intermediate absorption state. The present analysis shows: when tuning to a specific line of the 4d x-ray absorption spectrum with a total angular momentum J', only the associate multiplet component is found to resonate. At the ‘giant resonance’, the shape of the MCD-PE signal closely resembles the off-resonance case; this finding is explained within atomic-multiplet theory allowing a straightforward use of MCD in 4d-resonant PE (i) for element-specific analysis of multicomponent magnetic systems with high surface sensitivity and (ii) for surface-domain imaging by PE microscopy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 475: Symposium M – Magnetic Ultrathin Films, Multilayers, and Surfaces – 1997 , 1997 , 371
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Starke, K. et al., Phys. Rev. B 48, 1329 (1993).Google Scholar
2. van der Laan, G. and Thole, B.T., Phys. Rev. B 48, 210 (1993).Google Scholar
3. Starke, K. et al., Phys. Rev. B 50, 1317 (1994).Google Scholar
4. Kachel, T., Gudat, W., and Holldack, K., Appl. Phys. Lett. 64, 655 (1994).Google Scholar
5. Arenholz, E. et al., Preprint (1996).Google Scholar
6. (a) Zimkina, T. M. et al, Sov. Phys. Solid State 9, 1128 (1967);Google Scholar
7. Gerken, F., Barth, J., and Kunz, C., Phys. Rev. Lett. 47, 993 (1981).Google Scholar
Giant Resonances in Atoms, Molecules and Solids, ed. by Connerade, J.P. et al., (Plenum, NY., 1987).Google Scholar
8. Imada, S. and Jo, T., J. Phys. Soc. Jap. 59, 3358 (1990).Google Scholar
9. Muto, S. et al., J. Phys. Soc. Jpn. 63, 1179 (1994).Google Scholar
10. Starke, K. et al., Phys. Rev. B 55, 2672 (1997).Google Scholar