Local-spin-selective x-ray absorption and x-ray magnetic circular dichroism of MnP

The local-spin-selective x-ray-absorption spectrum and the magnetic-circular-dichroism spectrum are measured at the manganese [ital K] edge of MnP. Both spectra show the presence of a strong spin polarization at the edge. A comparison of the two techniques makes it possible to determine the energy d...

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Bibliographic Details
Published in:Physical review. B, Condensed matter Condensed matter, 1995-01, Vol.51 (2), p.1045-1052
Main Authors: de Groot FM, Pizzini, S, Fontaine, A, Hämäläinen, K, Kao, CC, Hastings, JB
Format: Article
Language:English
Subjects:
ABSORPTION SPECTRA
DICHROISM
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
FANO FACTOR
MAGNETIC CIRCULAR DICHROISM
MANGANESE COMPOUNDS
MANGANESE PHOSPHIDES
MATERIALS SCIENCE
ORIENTATION
PHOSPHIDES
PHOSPHORUS COMPOUNDS
PNICTIDES
SPECTRA
SPIN ORIENTATION
TRANSITION ELEMENT COMPOUNDS 360606 > Other Materials-- Physical Properties-- (1992-)
X-RAY SPECTRA
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Summary:The local-spin-selective x-ray-absorption spectrum and the magnetic-circular-dichroism spectrum are measured at the manganese [ital K] edge of MnP. Both spectra show the presence of a strong spin polarization at the edge. A comparison of the two techniques makes it possible to determine the energy dependence of the Fano factor. It is found that the Fano factor is [minus]4% at the edge but it decreases quickly over an energy range of 10 eV to values lower than 1%. The local-spin-selective x-ray-absorption spectrum is compared to the empty density of states as determined from a local-spin-density band-structure calculation. The use of the [ital K][beta] detection yields a spectrum with considerably better resolution, which offers new possibilities for more detailed comparisons with electronic-structure models.
ISSN:0163-1829
1095-3795
DOI:10.1103/physrevb.51.1045