Regensburg 2002 – wissenschaftliches Programm

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DY: Dynamik und Statistische Physik

DY 46: Poster

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 Büllesfeld21Institute 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.

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