Soft X-ray magnetic circular dichroism study of the ferromagnetic Cr$_{1-δ}$Te

Details Soft X-ray magnetic circular dichroism study of the ferromagnetic Cr$_{1-δ}$Te Soft X-ray magnetic circular dichroism study of the ferromagnetic Cr$_{1-δ}$Te

2003-01-09

arxiv.org/abs/cond-mat/0301117v2

Physics

Condensed Matter

Materials Science

REVTeX, 8 pages & 6 figures, submitted to Phys. Rev. B

Scientific paper

The 2p core excited XAS and XMCD spectra of Cr$_{1-\delta}$Te with several concentrations of $\delta$=0.11-0.33 have been measured. The observed XMCD lineshapes are found to very weakly depend on $\delta$. The experimental results are analyzed in terms of the configuration-interaction picture with consideration of hybridization and electron correlation effects. The calculated result shows that CrTe can be classified into a charge transfer type material and created holes preferably exist in Te 5p orbitals in Cr deficient materials Cr$_{1-\delta}$Te, which are in consistence with the observed XMCD feature and the reported band structure calculation.

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