First principles calculations of zinc blende superlattices with ferromagnetic dopants

• Autorzy: Wronka A.
• Języki publikacji: EN

Abstrakty

EN

Technological advances in device micro- and nano-fabrication over the past decade has enabled a variety of novel heterojunction device structures to be made in various spintronic device applications [1]. Among these, diluted and digital ferromagnetic half metallic heterostructures and multilayers with ferromagnetic dopants exhibit a rich variety of features, with the potential for future generations of electronic devices with improved sensitivity and higher packing density. We investigate the electronic and magnetic structure of the three component Fe/MnAs/AsGa(0,0,1) thin superlattices in the different supercell geometry. The calculations are performed by means of the density functional theory (DFT) method within the general gradient approximation with ultrasoft pseudopotentials, plane-wave basis and non-colinear magnetism. In our DFT calculations we have found that the half metallicity (HM) of MnAs/AsGa digital alloys can be destroyed by Fe submonolayers embedded in these materials.

Słowa kluczowe

EN

digital ferromagnetic heterostructure; density functional theory; half-metals

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2006
• Tom: Vol. 24, No. 3
• Strony: 725--730
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Wronka A.

• Department of Solid State Physics, University of Łódź, Pomorska 149/153, 90-236 Łódź,

Bibliografia

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