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Calculated magneto-...
Calculated magneto-optical Kerr spectra of the half-Heusler compounds AuMnX (X = In, Sn, Sb)
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- Amft, Martin (author)
- Uppsala universitet,Fysiska institutionen
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- Oppeneer, Peter M. (author)
- Uppsala universitet,Fysiska institutionen
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(creator_code:org_t)
- 2007-07-04
- 2007
- English.
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In: Journal of Physics. - : IOP Publishing. - 0953-8984 .- 1361-648X. ; 19:31, s. 315216-
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The ferromagnetic ground states of the half-Heusler compounds AuMnX (X ≤ In, Sn, Sb) have been calculated in the framework of the local spin-density approximation (LSDA) to density functional theory (DFT). AuMnSn is computed to be a half-metallic ferromagnet, whereas AuMnIn and AuMnSb are not half-metallic, due to their different band filling. The computed relativistic electronic structures served as inputs to calculate the magneto-optical Kerr rotations and ellipticities for all three materials. In the case of AuMnSn the largest, zero-temperature, polar Kerr rotation has been found to be -0.45° at about 1eV photon energy. The computed MOKE spectra of AuMnSn are in qualitative agreement with recent experiments. The largest Kerr rotations of AuMnIn and AuMnSb have been calculated to be +0.64° at 4.3eV and -0.85° at 0.9eV, respectively.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- magneto-optical Kerr effect
- half-Heusler
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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