Arola, E. and Strange, P. (2001) Relativistic Theory of Magnetic X-ray Scattering. Applied Physics A: Materials Science & Processing, 73 (6). pp. 667-671. ISSN 0947-8396.
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We present a description of a first-principles formalism for the scattering of circularly polarised X-rays within the framework of relativistic density functional theory (DFT). The scattering amplitudes are calculated using standard time-dependent perturbation theory to second order in the electron-photon interaction vertex. An implementation of the theory based on relativistic spin-polarised multiple-scattering theory is discussed. This method is relatively easy to implement, but has a limited range of applicability. We suggest that an implementation using the self-interaction corrections to DFT may make the theory applicable to rare-earth materials where many of the key experiments have been performed. The theory is illustrated with appropriate examples.
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Faculties > Science Technology and Medical Studies > School of Physical Sciences
|Depositing User:||Paul Strange|
|Date Deposited:||14 Sep 2008 08:58|
|Last Modified:||14 Jan 2010 14:17|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/4693 (The current URI for this page, for reference purposes)|
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