Conversion method of powder inelastic scattering data for one-dimensional systems

Extracting dispersive magnetic excitations from inelastic neutron scattering data usually requires large single crystals. We present a simple yet powerful method for extracting such information from polycrystalline or powder data for one-dimensional systems. We demonstrate the effectiveness of this...

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Bibliographic Details
Published in:Applied physics letters 2009-03, Vol.94 (9)
Main Authors: Tomiyasu, K., Fujita, M., Kolesnikov, A. I., Bewley, R. I., Bull, M. J., Bennington, S. M.
Format: Article
Language:English
Subjects:
INELASTIC SCATTERING
MONOCRYSTALS
NEUTRONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SCATTERING
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Summary:Extracting dispersive magnetic excitations from inelastic neutron scattering data usually requires large single crystals. We present a simple yet powerful method for extracting such information from polycrystalline or powder data for one-dimensional systems. We demonstrate the effectiveness of this data treatment by extracting dispersion curves from powder inelastic neutron scattering data on the one-dimensional spin-half systems: CuGeO3 and Rb2Cu2Mo3O12. For many such materials, it is not possible to grow sufficiently large crystals and this method offers a quick and efficient way to study their magnetic excitations.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3089566