Comment on “Optical and magneto-optical properties of AuMnSn” [Appl. Phys. Lett. 88, 121909 (2006)]

Ravindran, P.; Offernes, Laila; Kjekshus, A.

doi:10.1063/1.2804560

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“…There are many difficulties to prepare the ideal monocrystal of AuMnSb and AuMnSn which have perfectly elements composition in experiment [5]. In general, the physical property of the monocrystal with impurities or defects is different from the ideal monocrystal.…”

Section: Introductionmentioning

confidence: 99%

Full-Potential Study of the Magneto-Optical Kerr Effect for AuMnSb and AuMnSn

Shang

Wang

Tan

2013

AMR

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The magneto-optical Kerr effect (MOKE) for both Heusler type alloys (AuMnSb and AuMnSn) were studied using the full-potential linearized augmented plane-wave (FP-LAPW) method, based on the density functional theory implemented in the WIEN2k code. The differences with previous calculations on the Kerr spectra have been found explicitly. At proper Lorentzian such asδ= 0.4 eV, the calculated Kerr angle of AuMnSn reaches its maxima +0.3° near 0.6 eV and-0.5° at 5.2 eV, respectively while the MOKE spectra of AuMnSb exhibit less prominent Peaks (+0.5° at 0.3 eV, -1.9° at 0.9 eV, -1.0° at 2.4 eV and-2.0° at 5.3 eV). The results on the spectra in this work showed quite a lot differences with all previous all-electron calculations. It is concluded that the contribution from Sb (or Sn) site to the magneto-optical kerr effect is quite crucial in Heuslar alloys.

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Section: Introductionmentioning

confidence: 99%