Regensburg 2002 – wissenschaftliches Programm
DY 46.39: Poster
Donnerstag, 14. März 2002, 15:30–18:00, D
Low frequency spectra of Vanadyl Pyrophosphate — •Sascha Eschborn1, Swantje Kuhn1, Rudolf Feile1, W. Assmus2, and F Büllesfeld2 — 1Institute for Solid State Physics, Darmstadt University of Technology — 2Physikalisches Institut, Universität Frankfurt
We present low frequency spectra of amorphous vanadyl pyrophosphate ((VO)2P2O7) measured by Raman spectroscopy and neutron scattering at different temperatures. By comparison of the boson peak spectra obtained by the two methods we get the light-to-excitation coupling coefficient. We can also conclude that boson peak and quasielastic scattering are of different microscopic origin.