Publications in Scientific Journals:

K. Hense, U. Witte, M. Rotter, R. Schedler, E. Gratz, H. Nowotny, M. Loewenhaupt:
"Comparison of the CF-induced phonon shifts in CeCu2 and NdCu2";
Journal of Magnetism and Magnetic Materials, 272-276 (2004), e387 - e388.

English abstract:
Comparison of the CF-induced phonon shifts in CeCu2 and NdCu2

K. HenseCorresponding Author Contact Information, E-mail The Corresponding Author, a, U. Witteb, M. Rotterb, R. Schedlerb, E. Gratza, H. Nowotnyc and M. LoewenhauptE-mail The Corresponding Author, b

a TU Wien, Institute for Solid State Physics, Wiedner Hauptstr. 8-10, Wien A-1040, Austria
b TU Dresden, Institute for Applied Physics (IAPD), Dresden 01062, Germany
c TU Wien, Institute for Theoretical Physics, Wiedner Hauptstr. 8-10, Wien A-1040, Austria

Available online 4 January 2004.


Elementary excitations in solids like phonons and crystal field (CF) transitions are usually considered to be decoupled. It will be shown that this assumption is only valid in zeroth order. Experimental data, obtained from inelastic neutron scattering, as well as a theoretical model in first-order Taylor expansion will be presented to show a clear evidence of an interaction of the CF-levels and the phonons in the RCu2 series.

Author Keywords: NdCu2; CeCu2; YCu2; Lattice dynamics; CF-effects; Neutron scattering; Thermoelectric materials

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