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 HartreeFock 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
Angstrom Laboratory
Pierre Roy
Uppsala Universitet
Daniel Åberg
Angstrom Laboratory
Cecilia Andersson
Angstrom Laboratory
Sverker Edvardsson
Olof Karis
Angstrom Laboratory
Biplab Sanyal
Angstrom Laboratory
Peter Svedlindh
Uppsala Universitet
M Katsnelson
Angstrom Laboratory
Robert Gunnarsson
Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik
Olivier Bengone
Angstrom Laboratory
Olle Eriksson
Angstrom Laboratory
Journal of Magnetism and Magnetic Materials
0304-8853 (ISSN)
Vol. 272-276 part 3 1780-1781Ämneskategorier (SSIF 2011)
Fysik
DOI
10.1016/j.jmmm.2003.12.747