Self-interaction-corrected relativistic theory of magnetic scattering of x rays: Application to praseodymium

Arola, E. and Horne, M. and Strange, Paul and Winter, Herman and Szotek, Zdzislawa and Temmerman, Walter (2004) Self-interaction-corrected relativistic theory of magnetic scattering of x rays: Application to praseodymium. Physical Review B: Condensed Matter and Materials Physics, 70 (23). pp. 235127-1. ISSN 0163-1829. (Full text available)

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http://dx.doi.org/10.1103/PhysRevB.70.235127

Abstract

A first-principles theory of resonant magnetic scattering of x rays is presented. The scattering amplitudes are calculated using a standard time-dependent perturbation theory to second order in the electron-photon interaction vertex. In order to calculate the cross section reliably an accurate description of the electronic states in the material under investigation is required and this is provided by the density functional theory employing the local spin density approximation combined with the self-interaction corrections. The magnetic x-ray resonant scattering theory has been implemented in the framework of the relativistic spin-polarized linear muffin tin orbital with atomic sphere approximation band structure calculation method. The theory is illustrated with an application to ferromagnetic praseodymium. It is shown that the theory quantitatively reproduces the dependence on the spin and orbital magnetic moments originally predicted qualitatively [Blume, J. Appl. Phys. 57, 3615 (1985)] and yields results that can be compared directly with experiment.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Depositing User: Paul Strange
Date Deposited: 05 Oct 2012 08:12
Last Modified: 07 May 2014 10:55
Resource URI: http://kar.kent.ac.uk/id/eprint/31280 (The current URI for this page, for reference purposes)
ORCiD (Arola, E.):
ORCiD (Horne, M.):
ORCiD (Strange, Paul):
ORCiD (Winter, Herman):
ORCiD (Szotek, Zdzislawa):
ORCiD (Temmerman, Walter):
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