First-principles calculations of optical and magneto-optical properties of Ga1-xMnxAs and MnAs
2009 (English)In: Physica. B, Condensed matter, ISSN 0921-4526, Vol. 404, no 20, 3782-3788 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2009. Vol. 404, no 20, 3782-3788 p.
Half-metallic ferromagnet, Diluted magnetic semiconductor (DMS), Magneto-optical Kerr effect (MOKE), Magnetic circular dichroism (MCD)
IdentifiersURN: urn:nbn:se:uu:diva-127431DOI: 10.1016/j.physb.2009.06.141ISI: 000271602500081OAI: oai:DiVA.org:uu-127431DiVA: diva2:330016