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First-principles calculations of optical and magneto-optical properties of Ga1-xMnxAs and MnAs
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- Amft, Martin (author)
- Uppsala universitet,Institutionen för fysik och materialvetenskap
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- Burkert, T (author)
- Uppsala universitet,Institutionen för fysik och materialvetenskap
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- Sanyal, Biplab (author)
- Uppsala universitet,Institutionen för fysik och materialvetenskap
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- Elsevier BV, 2009
- 2009
- English.
- In: Physica. B, Condensed matter. - : Elsevier BV. - 0921-4526 .- 1873-2135. ; 404:20, s. 3782-3788
- Journal article (peer-reviewed)
Abstract
Subject headings
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- We present a first-principles density-functional investigation of the optical and magneto-optical properties of MnGa1-xAs (with x = 0,0.0625, and 1) systems. Our calculated dielectric function, magneto-optical Kerr effect, and magnetic circular dichroism spectra agree reasonably well with existing experimental results. A comparison of the optical and magneto-optical spectra of MnAs in the naturally occurring hexagonal phase and in the cubic zinc-blende structure is made. The differences in the spectral properties of these two phases could aid detection of MnAs in the zinc-blende structure. (C) 2009 Elsevier B.V. All rights reserved.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Half-metallic ferromagnet
- Diluted magnetic semiconductor (DMS)
- Magneto-optical Kerr effect (MOKE)
- Magnetic circular dichroism (MCD)
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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