Final state effects in the X-ray absorption spectra of La0.7Sr0.3MnO3
Paper i proceeding, 2004

We present a comparison of theoretical calculations of the electronic structure of La0.7Sr0.3MnO3 with measurements of the unoccupied local density of states for Mn obtained from X-ray absorption spectroscopy (XAS). We compare two different theoretical calculations of the Mn XAS spectra, one based on the local spin density approximation (LSDA) and the other one based on an atomic Hartree–Fock calculation for the Mn ions. In the atomic calculation the solid state effects are introduced through a cubic crystal field where the crystal field strength is obtained from the LSDA calculation. It is found that the atomic calculations agree better with experimental data.

manganite

XAS

Författare

Ola Wessely

Uppsala universitet

Pierre Roy

Uppsala universitet

Daniel Åberg

Uppsala universitet

Cecilia Andersson

Uppsala universitet

Sverker Edvardsson

Olof Karis

Uppsala universitet

Biplab Sanyal

Uppsala universitet

Peter Svedlindh

Uppsala universitet

M Katsnelson

Uppsala universitet

Robert Gunnarsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Olivier Bengone

Uppsala universitet

Olle Eriksson

Uppsala universitet

Journal of Magnetism and Magnetic Materials

0304-8853 (ISSN)

Vol. 272-276 part 3 1780-1781

Ämneskategorier

Fysik

DOI

10.1016/j.jmmm.2003.12.747