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Publications in Scientific Journals:

T. Galek, C. Hébert, D. Eyidi, T. Moskalewicz, P. Schattschneider, H. Figiel:
"Electron energy-loss spectroscopy investigations of the electron density in ErMn2 and ErMn2D2 compounds";
Journal of Physics: Condensed Matter, 17 (2005), 3657 - 3664.



English abstract:
Electron energy-loss spectroscopy investigations of the electron density in ErMn2and ErMn2D2 compounds
T Galek et al 2005 J. Phys.: Condens. Matter 17 3657-3664 doi:10.1088/0953-8984/17/23/017

T Galek 1,2,4, C Hébert 2, D Eyidi 2, T Moskalewicz 2,3, P Schattschneider 2 and H Figiel 1

1 Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Aleja Mickiewicza 30, PL-30059 Kraków, Poland
2 Institute of Solid State Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
3 Faculty of Metallurgy and Material Science, AGH University of Science and Technology, Aleja Mickiewicza 30, PL-30059 Kraków, Poland
4 Address for correspondence: Institute of Solid State Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria
E-mail: Tomasz.Galek@agh.edu.pl

Abstract. Hydrogen atoms introduced into a bulk of rare earth-transition metal compound influence the electronic structure of the material. Additional electrons are expected to change the number of free electrons per volume unit present in the system. Electron energy-loss spectra were taken in the low-loss region up to 50 eV. In spectra for ErMn2 and ErMn2D2 compounds, differences in the shape and position of the plasmon peak were observed. The dielectric functions were obtained from the energy-loss spectra using a Kramers-Kronig analysis. Different plasmon energies were found for both samples, and using the Drude model the numbers of free electrons per volume unit were calculated for pure and deuterated material. Significant differences were found, proving an increase of the free electron number per volume unit in the deuterated sample.

Print publication: Issue 23 (15 June 2005)
Received 27 January 2005, in final form 5 May 2005
Published 27 May 2005

PDF (371 KB) | References


Online library catalogue of the TU Vienna:
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05938076

Electronic version of the publication:
http://dx.doi.org/10.1088/0953-8984/17/23/017


Created from the Publication Database of the Vienna University of Technology.