Optical and magneto-optical properties of AuMnSn

We have measured room-temperature magneto-optical properties of AuMnSn on a single-crystalline sample. The maximum polar Kerr rotation was predicted to be very large, about − 0.7 ° at 1.2 eV [ L. Offernes , P. Ravindran , and A. Kjekshus , Appl. Phys. Lett. 82 , 2862 ( 2003 ) ]. We found the experim...

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Bibliographic Details
Published in:Applied physics letters 2006-03, Vol.88 (12), p.121909-121909-3
Main Authors: Lee, S. J., Janssen, Y., Park, J. M., Cho, B. K.
Format: Article
Language:English
Subjects:
MAGNETO-OPTICAL EFFECTS
MATERIALS
MATERIALS SCIENCE
OPTICAL PROPERTIES
PHYSICS
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Summary:We have measured room-temperature magneto-optical properties of AuMnSn on a single-crystalline sample. The maximum polar Kerr rotation was predicted to be very large, about − 0.7 ° at 1.2 eV [ L. Offernes , P. Ravindran , and A. Kjekshus , Appl. Phys. Lett. 82 , 2862 ( 2003 ) ]. We found the experimental maximum Kerr rotation and ellipticity were about three times smaller than predicted and appeared at energies about 0.6 eV higher than predicted, which is possibly due to inaccurate handling of the theory based on the local spin-density approximation to density-function theory for the localized 4 d and 5 d orbitals in AuMnSn.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2187477