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相关论文: Electronic structure and magnetism in M(=IA, IIA)C…

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Electronic structures of carbides with the rocksalt structure were calculated by full potential electronic codes solving the Kohn-Sham equation. Bonding characters were analyzed by constructing tight-binding Hamiltonian based on…

材料科学 · 物理学 2012-11-09 Wenxu Zhang , Zhida Song , Bin Peng , Wanli Zhang

We study the properties of ThCr$_2$Si$_2$ structure BaMn$_2$As$_2$ and BaMn$_2$Sb$_2$ using density functional calculations of the electronic and magnetic as well experimental measurements on single crystal samples of BaMn$_2$As$_2$. These…

材料科学 · 物理学 2009-02-25 J. an , A. S. Sefat , D. J. Singh , M. H. Du

In this work, results of {\it ab-initio} band structure calculations for $A_2BC$ Heusler compounds that have $A$ and $B$ sites occupied by transition metals and $C$ by a main group element are presented. This class of materials includes…

材料科学 · 物理学 2009-11-11 Hem C. Kandpal , Gerhard H. Fecher , Claudia Felser

Employing first-principle electronic structure calculations, we study the magnetic and electronic properties of the XY (X= Mg, Ca, Sr and Y= N, P, As, Sb) compounds crystallizing in the zincblende structure. The Ca and Sr alkaline-earth…

材料科学 · 物理学 2012-10-30 K. Ozdogan , I. Galanakis

A detailed theoretical study on the electronic structure and magnetic properties of half-metallic ferromagnet CrO$_2$ was carried out by means of relativistic full-potential linear muffin-tin orbital method within the generalized gradient…

材料科学 · 物理学 2009-11-11 V. Kanchana , G. Vaitheeswaran , M. Alouani

Motivated by the observation of ferromagnetism in carbon foams, a massive search for (meta)stable disorder structures of elemental carbon is performed by a generate and test approach. We use the Density Functional based program SIESTA to…

介观与纳米尺度物理 · 物理学 2015-06-15 M. A. Akhukov , M. I. Katsnelson , A. Fasolino

The electronic structure and magnetic properties of CaCr$\mathrm{O}_3$ have been calculated by two methods, including hybrid-exchange density-function theory and density-functional theory + $U$. The computed densities of states from both of…

强关联电子 · 物理学 2015-05-13 Wei Wu

We found that magnetic ground state of one-dimensional atomic chains of carbon-transition metal compounds exhibit half-metallic properties. They are semiconductors for one spin-direction, but show metallic properties for the opposite…

材料科学 · 物理学 2009-11-11 S. Dag , S. Tongay , T. Yildirim , E. Durgun , R. T. Senger , C. Y. Fong , S. Ciraci

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…

材料科学 · 物理学 2015-04-30 Huan-Huan Xie , Qiang Gao , Lei Li , Gang Lei , Xian-Ru Hu , Jian-Bo Deng

From density functional theory investigations helped with crystal chemistry rationale, single-atom C, embedded in layered hexagonal CCn with n = 6, 12, 18 networks, is stable in a magnetic state with M(C)= 2 Bohr Magneton (BM). The examined…

材料科学 · 物理学 2020-07-28 Samir F Matar

The electronic structure and magnetic properties of CrSb$_2$ have been investigated by ab-initio calculations with an emphasis on the role of the magnetic structure for the ground state. The influence of correlation effects has been…

强关联电子 · 物理学 2015-06-05 G. Kuhn , S. Mankovsky , H. Ebert , M. Regus , W. Bensch

The electronic states of isostructural single-component molecular conductors [M(tmdt)2] (M= Ni, Au, and Cu) are theoretically studied. By considering fragments of molecular orbitals as basis functions, we construct a multiorbital model…

强关联电子 · 物理学 2013-04-17 Hitoshi Seo , Shoji Ishibashi , Yuichi Otsuka , Hidetoshi Fukuyama , Kiyoyuki Terakura

Existence of ferromagnetism in bulk calcium compounds is discovered theoretically. First-principles calculations of calcium phosphide, calcium arsenide and calcium antimonide in the zinc-blende structure have been performed to show the…

材料科学 · 物理学 2016-08-31 Masaaki Geshi , Koichi Kusakabe , Hidekazu Tsukamoto , Naoshi Suzuki

The problem of importance of strong correlations for the electronic structure, transport and magnetic properties of half--metallic ferromagnetic CrO_2 is addressed by performing density functional electronic structure calculations in the…

强关联电子 · 物理学 2009-11-10 A. Toropova , G. Kotliar , S. Y. Savrasov , V. S. Oudovenko

We have attributed magnetism and electronic structure of V2O3 to the V3+ ions. We claim that the V3+ ion in V2O3 should be considered as described by the quantum numbers S=1 and L=3. Such quantum numbers result from two Hund's rules. The…

强关联电子 · 物理学 2007-05-23 R. J. Radwanski , Z. Ropka

The electronic structure of the single molecule magnet system M[Fe(L)2]3*4CHCl3 (M=Fe,Cr; L=CH3N(CH2CH2O)2) has been studied using X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, soft X-ray emission spectroscopy, and…

We present a study of the electronic and magnetic properties of the multiple-decker sandwich nanowires ($CP-M$) composed of cyclopentadienyl (CP) rings and 3d transition metal atoms (M=Ti to Ni) using first-principles techniques. We…

材料科学 · 物理学 2015-06-03 C. Morari , H. Allmaier , F. Beiuşeanu , T. Jurcuţ , L. Chioncel

Some doped semiconductors have recently been shown to display superconductivity or weak ferromagnetism. Here we investigate the electronic structure and conditions for magnetism in a supercells of cubic XW_{26}O_{81}, where X=Nb,V and Re.…

材料科学 · 物理学 2016-08-31 T. Jarlborg

First principles calculations are used to establish that the electronic structure of graphene ribbons with zig-zag edges is unstable with respect to magnetic polarisation of the edge states. The magnetic interaction between edge states is…

材料科学 · 物理学 2015-06-25 L. Pisani , J. A. Chan , B. Montanari , N. M. Harrison

Results of the first principles study on the electronic structure and magnetism of the superconducting weak ferromagnet Y$_4$Co$_3$, are presented. Using the full potential Korringa-Kohn-Rostoker (FP-KKR) method, densities of states,…

超导电性 · 物理学 2011-03-15 Bartlomiej Wiendlocha , Janusz Tobola , Stanislaw Kaprzyk , Andrzej Kolodziejczyk
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