Infuence of correlation effects on the of magneto-optical properties of half-metallic ferromagnet NiMnSb
S. Chadov, J. Minar, H. Ebert, A. Perlov, L. Chioncel, M.I. Katsnelson, and A.I. Lichtenstein
TL;DR
This paper investigates how including many-body correlation effects via DMFT improves the theoretical prediction of magneto-optical spectra in NiMnSb, aligning better with experimental results.
Contribution
It introduces a combined LSDA+DMFT approach to accurately model the magneto-optical properties of NiMnSb, highlighting the importance of correlation effects.
Findings
DMFT improves agreement with experimental spectra
Correlation effects significantly influence magneto-optical properties
Enhanced theoretical modeling accuracy for half-metallic ferromagnets
Abstract
The magneto-optical spectra of NiMnSb were calculated in the framework of the Local Spin Density Approximation (LSDA) combined with Dynamical Mean-Field Theory (DMFT). Comparing with results based on plain LSDA, an additional account of many-body correlations via DMFT results in a noticably improved agreement of the theoretical Kerr-rotation and ellipticity spectra with corresponding experimental data.
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