English
Related papers

Related papers: Half-Metallic L2$_1$ Structures with (001) Planar …

200 papers

First-principles calculations and a tight-binding analysis predict that the iron-pnictide BaCrFeAs2 is a promising candidate for half-metallic material with fully-compensated magnetization. The transition-metal ions Cr and Fe prefer the…

Materials Science · Physics 2010-07-20 Shu-Jun Hu , Xiao Hu

New materials are currently sought for use in spintronics applications. Ferromagnetic materials with half metallic properties are valuable in this respect. Here we present the electronic structure and magnetic properties of binary compounds…

Materials Science · Physics 2016-08-31 B. Sanyal , L. Bergqvist , O. Eriksson

Using a state-of-the-art full-potential electronic structure method within the local spin density approximation, we study the electronic and magnetic structure of Mn$_2$V-based full Heusler alloys: Mn$_2$VZ (Z=Al, Ga, In, Si, Ge, and Sn).…

Materials Science · Physics 2007-05-23 K Ozdogan , I Galanakis , E Sasioglu , B Aktas

Half-metallic ferrimagnetism is crucial for spintronic applications with respect to ferromagnets due to the lower stray fields created by these materials. Studying the effect of defects in CrAs and related transition-metal chalcogenides and…

Materials Science · Physics 2009-11-11 I. Galanakis , K. Ozdogan , E. Sasioglu , B. Aktas

We report systematic first-principles calculations for ordered zinc-blende compounds of the transition metal elements V, Cr, Mn with the sp elements N, P, As, Sb, S, Se, Te, motivated by recent fabrication of zinc-blende CrAs, CrSb, and…

Materials Science · Physics 2009-11-07 Iosif Galanakis , Phivos Mavropoulos

Intermetallic Heusler alloys are amongst the most attractive half-metallic systems due to the high Curie temperatures and the structural similarity to the binary semiconductors. In this review we present an overview of the basic electronic…

Materials Science · Physics 2008-01-16 K. Ozdogan , E. Sasioglu , I. Galanakis

Based on the first-principles electronic structure calculations, we predict that a chromium oxide K$_2$Cr$_8$O$_{16}$ of hollandite type should be a half-metallic ferromagnet where the Fermi level crosses only the majority-spin band,…

Strongly Correlated Electrons · Physics 2009-07-17 M. Sakamaki , T. Konishi , Y. Ohta

We present an extended study of single impurity atoms and atomic swaps in half-metallic CrAs, CrSb and CrSe zinc-blende compounds. Although the perfect alloys present a rather large gap in the minority-spin band, all defects under study,…

Materials Science · Physics 2015-05-13 I. Galanakis , S. G. Pouliasis

Electronic structure calculation were used to predict a new material for spintronic applications. Co2Mn0.5Fe0.5Si is one example which is stable against on-site correlation and disorder effects due to the position of the Fermi energy in the…

Materials Science · Physics 2013-08-08 Benjamin Balke , Hem C. Kandpal , Gerhard H. Fecher , Claudia Felser

We report on first-principles calculations of multilayers of zinc-blende half-metallic ferromagnets CrAs and CrSb with III-V and II-VI semiconductors, in the [001] orientation. We examine the ideal and tetragonalised structures, as well as…

Materials Science · Physics 2009-11-10 Ph. Mavropoulos , I. Galanakis , P. H. Dederichs

We present a study of the electronic structure and magnetism of Co$_2$MnAl, CoMnVAl and their heterostructure. We employ a combination of density-functional theory and dynamical mean-field theory (DFT+DMFT). We find that Co$_2$MnAl is a…

Materials Science · Physics 2018-01-12 Igor Di Marco , Andreas Held , Samara Keshavarz , Yaroslav O. Kvashnin , Liviu Chioncel

We review the electronic and magnetic properties of the quinternary full Heusler alloys of the type Co$_2$[Cr$_{1-x}$Mn$_x$][Al$_{1-y}$Si$_y$] employing three different approaches : (i) the coherent potential approximation (CPA), (ii) the…

Materials Science · Physics 2015-05-13 K. Ozdogan , E. Sasioglu , I. Galanakis

Half-metallic properties of TlCrS2, TlCrSe2 and hypothetical TlCrSSe have been investigated by first-principles all-electron full-potential linearized augmented plane wave plus local orbital (FP-LAPW+lo) method based on density functional…

Materials Science · Physics 2017-04-26 F. M. Hashimzade , D. A. Huseinova , Z. A. Jahangirli , B. H. Mehdiyev

We report first-principles calculations of zinc-blende half-metals, identifying systems for epitaxial growth with semiconductors, and present calculations for CrAs/GaAs multilayers. We find that half-metallicity is conserved troughout the…

Materials Science · Physics 2007-05-23 Ph. Mavropoulos , I. Galanakis , P. H. Dederichs

Half-metallic ferromagnetic full-Heusler alloys containing Co and Mn, having the formula Co$_2$MnZ where Z a sp element, are among the most studied Heusler alloys due to their stable ferromagnetism and the high Curie temperatures which they…

Materials Science · Physics 2007-09-01 K. Ozdogan , I. Galanakis , E. Sasioglu , B. Aktas

We investigate the electronic structure and magnetism of half-Heusler compounds XYZ (X, Y=V, Cr, Mn, Fe, Co and Ni; Z=Al, Ga, In, Si, Ge, Sn, P, As, and Sb) using the ab initio density functional theory calculations. Nine half-metals with…

Materials Science · Physics 2014-02-19 L. Feng , E. K. Liu , W. X. Zhang , W. H. Wang , G. H. Wu

Half-metallic ferromagnetic (HMF) materials show high spin polarization and are therefore interesting to researchers due to their possible applications in spintronic devices. In these materials, while one spin sub band has a finite density…

Materials Science · Physics 2016-08-11 Lakhan Bainsla , K. G. Suresh

In this letter, we investigate the magnetic properties, electronic structures, Slater-Pauling behaviours of some quanternary Heusler alloys with 4d and 3d transition metal elements. The energy levels of the minority-spin electronic band…

Materials Science · Physics 2015-01-19 Qiang Gao , Huan-Huan Xie , Lei Li , Gang Lei , Ke Wang , Jian-Bo Deng , Xian-Ru Hu

The ordered alloys of alkali metals (Rb and Cs) and gold (Au) have the B2 (CsCl-type) structure and show a semiconducting property, irrespective to the metallic constituents. Francium (Fr) is classed as an alkali metal and is expected to…

Materials Science · Physics 2021-10-01 Shota Ono

First-principle calculations were performed within the framework of the density functional theory (DFT) using FP-LAPW method as implemented in WIEN2k code to determine the structural stability, electronic and magnetic properties of…

Materials Science · Physics 2020-03-05 M. Kadjaoud , M. Mokhtari , L. Djoudi , M. Merabet , S. Benalia , D. Rached , R. Belacel , F. Zami , F. Dahmane
‹ Prev 1 2 3 10 Next ›