Numéro |
J. Phys. IV France
Volume 7, Numéro C2, Avril 1997
Proceedings of the 9th International Conference on X-Ray Absorption Fine Structure
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Page(s) | C2-373 - C2-374 | |
DOI | https://doi.org/10.1051/jp4/1997023 |
J. Phys. IV France 7 (1997) C2-373-C2-374
DOI: 10.1051/jp4/1997023
Polarization Analysis of Angular Dependent Resonantly Excited Soft X-Ray Emission Spectra of FeO, α-Fe2O3 and La2CuO4
G. Dräger1, D. Heumann1, S. Bocharov1, L.C. Duda2, J. Guo2, N. Wassdahl3 and E.J. Nordgren21 Fachbereich Physik der Martin-Luther-Universität, 06108 Halle, Germany
2 Department of Physics, Uppsala University, Box 530, 75121 Uppsala, Sweden
3 Department of Physics, Uppsala University, Box 530, 75121 Uppsala Sweden
Abstract
At the BW3 beamline (HASYLAB/Hamburg) we have studied the Fe L and Cu L emission spectra of FeO, α-Fe203
and La2CuO4, respectively, using different orientations of the single crystal samples with respect to the polarization of the
exciting radiation and to horizontal and vertical positions of the x-ray grating spectrometer. The energies of the exciting
photons were chosen at characteristic structures of the absorption spectra. Depending on the excitation energy and the
geometrical configuration the spectra show characteristic Lα/L1 intensity ratio and changes in the shape and position of the ha
emission bands. The Lα emission of La2Cu04 could be completely analyzed with respect to the polarization of exciting and
emitted radiation and is discussed on the basis of a model calculation, of Tanaka and Kotani [J. Phys. Soc. Jpn. 62, (1993) 464].
© EDP Sciences 1997