Vibrational density of states measurements in disordered systems

被引：0

作者：

Violini, N. ^{[1
]}

Cornicchi, E. ^{[1
]}

Orecchini, A. ^{[1
]}

Paciaroni, A. ^{[1
]}

Petrillo, C. ^{[1
]}

Sacchetti, F. ^{[1
]}

机构：

[1] Forschungszentrum Julich, Julich Ctr Neutron Scattering, D-52425 Julich, Germany

来源：

5TH EUROPEAN CONFERENCE ON NEUTRON SCATTERING | 2012年 / 340卷

关键词：

DYNAMICS; RAMAN;

D O I：

10.1088/1742-6596/340/1/012082

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present a data treatment procedure, based on an iterative technique, properly developed to subtract the multi-phonon contributions from the dynamic structure factor in a self-consistent way. With this technique, we derive the one-phonon vibrational density of states from the dynamic structure factor of different disordered systems, in the framework of the incoherent scattering approximation. We present results on glassy glucose (C6H12O6), a nearly perfect incoherent scatterer, due to high hydrogen content. The data treatment procedure has been found to work well also for the more complex case of dry and hydrated DNA.

引用

页数：5

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