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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

The first-principles full-potential linearized augmented plane-wave method based on density functional theory is used to investigate electronic structure and magnetic properties of hypothetical binary compounds of I$^{A}$ subgroup elements…

Materials Science · Physics 2008-09-14 Krzysztof Zberecki , Leszek Adamowicz , Michał Wierzbicki

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 investigate the electronic structures and magnetic properties of RbSe and CsTe compounds in CsCl, RS and ZB structures by using first-principles calculation. It is shown that these two compounds exhibit half-metallic ferromagnetism with…

Materials Science · Physics 2015-04-30 Huan-Huan Xie , Qiang Gao , Lei Li , Gang Lei , Xian-Ru Hu , Jian-Bo Deng

Employing first-principles calculations we study the structural, electronic and magnetic properties of the [Sc$_{1-x}$V$_x$]C and [Sc$_{1-x}$V$_x$]Si alloys. In their equilibrium rocksalt structure all alloys are non-magnetic. The…

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

The ground state structures of the A$_x$B$_{1-x}$C wurtzite (WZ) alloys with $x=$0.25, 0.5, and 0.75 are revealed by a ground state search using the valence-force field model and density-functional theory total energy calculations. It is…

Materials Science · Physics 2009-09-30 H. J. Xiang , Su-Huai Wei , Shiyou Chen , X. G. Gong

The electronic structure of the VAs compound in the zinc-blende structure is investigated using a combined density-functional and dynamical mean-field theory approach. Contrary to predictions of a ferromagnetic semiconducting ground state…

Strongly Correlated Electrons · Physics 2007-05-23 L. Chioncel , Ph. Mavropoulos , M. Ležaić , S. Blügel , E. Arrigoni , M. I. Katsnelson , A. I. Lichtenstein

Correlation effects on the electronic structure of half-metallic CrAs in zinc-blende structure are studied for different substrate lattice constants. Depending on the substrate the spectral weight of the non-quasiparticle states might be…

Strongly Correlated Electrons · Physics 2009-11-11 L. Chioncel , M. I. Katsnelson , G. A. de Wijs , R. A. de Groot , A. I. Lichtenstein

Density functional theory calculations within the generalized gradient approximation are employed to study the ground state of Co2FeAl. Various magnetic configurations are considered to find out its most stable phase. The ferromagnetic…

Strongly Correlated Electrons · Physics 2020-06-25 Aquil Ahmad , S. K. Srivastava , A. K. Das

The central target of spintronics research is to achieve flexible control of highly efficient and spin-polarized electronic currents. Based on first-principles calculations and k-p models, we demonstrate that Cu2S/MnSe heterostructures are…

Materials Science · Physics 2019-01-04 Yang Xue , Bao Zhao , Yan Zhu , Tong Zhou , Jiayong Zhang , Ningbo Li , Hua Jiang , Zhongqin Yang

We present a first principle study of new class of high-$T_c$ half-heusler ferromagnets NiCrZ (Z = Si, P, Ge, As, Te). The structure and magnetic properties are investigated through the calculation of the electronic structure, equilibrium…

Materials Science · Physics 2011-10-26 Van An Dinh , Kazunori Sato , Hirosi Katayama-Yoshida

Based on the first principle calculation, we propose a new class of high-$T_c$ half-heusler ferromagnets NiMnZ (Z = Si, P, Ge, As). The structural and magnetic properties are investigated through the calculation of the electronic structure,…

Materials Science · Physics 2008-01-16 Van An Dinh , Kazunori Sato , Hiroshi Katayama-Yoshida

We present an ab initio full-potential linearized augmented plane-wave (FLAPW) study of the structural and electronic properties of the two bulk unstable compounds FeSi (CsCl structure) and FeSi$_2$ (CaF$_2$ structure) which have recently…

Condensed Matter · Physics 2007-05-23 K. A. Mader , H. von Kanel , A. Baldereschi

Crystal phase semiconductor heterostructures allow for electron confinement without uncertainties caused by chemical intermixing found in material heterostructures and are candidates for next generation optoelectronics devices ranging from…

Materials Science · Physics 2023-08-16 Joseph Sink , Craig Pryor

Conventional magnetism occurs in systems which contain transition metals or rare earth ions with partially filled $d$ or $f$ shells. It is theoretically predicted that compounds of groups IA and IIA with IV and V, in some structural phases,…

Materials Science · Physics 2017-03-28 Seyed Mojtaba Rezaei Sani , Omid Khakpour

Half-metallic ferromagnets show 100% spin-polarization at the Fermi level and are ideal candidates for spintronic applications. Despite the extensive research in the field, very few materials have been discovered so far. Here we present…

Strongly Correlated Electrons · Physics 2020-07-10 Girish C. Tewari , Divya Srivastava , Reijo Pohjonen , Otto Mustonen , Antti J. Karttunen , Johan Lindén , Maarit Karppinen

Ab-initio results for structural and electronic properties of NaCl-type FeN are presented in a framework of plane-wave and ultrasoft pseudopotentials. Competition among different magnetic ordering is examined. We find the ferromagnetic…

Materials Science · Physics 2009-10-31 Alessio Filippetti , Warren E. Pickett

Epitaxial films including bulk-like cubic and wurtzite polymorphs of MnSb have been grown by molecular beam epitaxy on GaAs via careful control of the Sb4/Mn flux ratio. Nonzero-temperature density functional theory was used to predict ab…

Using full-potential linear augmented plane wave method (FP-LAPW) and the density functional theory, we have carried out a systematic investigation of the electronic, magnetic, and cohesive properties of the chalcogenide CrTe in three…

Materials Science · Physics 2015-03-17 Y. Liu , S. K. Bose , J. Kudrnovský

Electronic structure calculations from first-principles are employed to design some new half-metallic fully-compensated ferrimagnets (or as they are widely known half-metallic antiferromagnets) susceptible of finding applications in…

Materials Science · Physics 2009-11-13 I. Galanakis , K. Ozdogan , E. Sasioglu , B. Aktas