Volume 42, Number 2, April II 1998
|Page(s)||179 - 184|
|Section||Condensed matter: electronic structure, electrical, magnetic and optical properties|
|Published online||01 September 2002|
Synchrotron radiation study of dynamic magnetic scattering in beryllium
Istituto Nazionale per la Fisica della Materia, Unità di Perugia,
Dipartimento di Fisica, Università di Perugia, Via A. Pascoli, 06123 Perugia, Italy
2 Dipartimento di Chimica, Università di Roma La Sapienza, P.le Aldo Moro 5, 00185 Roma, Italy
3 Istituto di Strutturistica Chimica del CNR, C.P. 10, 00016 Monterotondo Stazione, Roma, Italy
Accepted: 23 February 1998
The non-Thomson contribution to the quasi-elastic X-ray cross-section in non-magnetic metallic Beryllium has been investigated by synchrotron radiation. Such a term is brought about by scattered photons with polarization perpendicular to that of the incoming beam. A properly designed polarization analysis device has been employed for the measurement. The present results show that a non-Thomson contribution is actually present in beryllium. The possible link of this term to dynamic magnetic scattering is investigated by means of a simple theoretical model.
PACS: 71.10.Ca – Electron gas, Fermi gas / 78.70.Ck – X-ray scattering
© EDP Sciences, 1998
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