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相关论文: Electronic structure and bonding properties of cob…

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The structural and magnetic properties of spinel compounds $CoB_2O_4$ (B=Cr,Mn and Fe) are studied using the DFT+U method and generalized gradient approximation (GGA). We concentrate on understanding the trends in the properties of these…

强关联电子 · 物理学 2016-09-21 Debashish Das , Rajkumar Biswas , Subhradip Ghosh

We have studied the structural, electronic and magnetic properties of spinel $\rm Co_3O_4$(111) surfaces and their interfaces with ZnO (0001) using density functional theory (DFT) within the Generalized Gradient Approximation with on-site…

材料科学 · 物理学 2018-03-21 Igor Kupchak , Natalia Serpak , Anatoli Shkrebtii , Roland Hayn

First principles calculations were performed to study the ground state electronic properties of BaFeO3 (BFO) within the density functional theory (DFT). Adopting generalized gradient approximation (GGA) exchange and correlation functional…

材料科学 · 物理学 2007-05-23 Hong-Jian Feng , Fa-Min Liu

We perform systematic density functional theory (DFT) calculations to assess the performance of various exchange-correlation potentials $V_{xc}$ in describing the chalcogenide GaM$_4$Q$_8$ lacunar spinels (M=Mo, V, Nb, Ta; Q=S, Se). We…

材料科学 · 物理学 2019-09-25 Yiqun Wang , Danilo Puggioni , James M. Rondinelli

The electronic structure of the corundum-type transition-metal oxides V2O3 and Ti2O3 is studied by means of the augmented spherical wave method, based on density-functional theory and the local density approximation. Comparing the results…

强关联电子 · 物理学 2007-05-23 V. Eyert , U. Schwingenschloegl , U. Eckern

We investigate the electronic and magnetic structures and the character and direction of spin and orbital moments of the recently synthesized quadruple perovskite cobaltovanadate CaCo3V4O12 using a selection of methods from density…

强关联电子 · 物理学 2014-11-19 H. B. Rhee , W. E. Pickett

Using a linear combination of atomic orbitals approach, we report a systematic comparison of various Density Functional Theory (DFT) and hybrid exchange-correlation functionals for the prediction of the electronic and structural properties…

材料科学 · 物理学 2008-05-07 D. I. Bilc , R. Orlando , R. Shaltaf , G. -M. Rignanese , Jorge Íñiguez , Ph. Ghosez

The electronic properties of two spinels Fe$_3$O$_4$ and Fe$_2$SiO$_4$ are studied by the density functional theory. The local Coulomb repulsion $U$ and the Hund's exchange $J$ between the $3d$ electrons on iron are included. For $U=0$,…

强关联电子 · 物理学 2010-07-15 P. Piekarz , A. M. Oleś , K. Parlinski

There are two interpretations offered for the different structural and magnetic properties of the mixed valence homo-metallic ludwigites, Co3O2BO3 and Fe3O2BO3. One of them associates the physical behavior to charge ordering processes among…

材料科学 · 物理学 2019-05-20 M. Matos , J. Terra , D. E. Ellis

We study the structural, electronic, and magnetic properties of Co$_2$ZAl compounds employing a pseudopotential electronic bandstructure method. The stability of the compounds is established through the formation and cohesive energy…

材料科学 · 物理学 2020-08-11 Sashi Nepal , Ramesh Dhakal , Iosif Galanakis

The electronic structure and magnetic properties of the strongly correlated material La$_2$O$_3$Fe$_2$Se$_2$ are studied by using both the density function theory plus $U$ (DFT+$U$) method and the DFT plus Gutzwiller (DFT+G) variational…

材料科学 · 物理学 2016-09-07 Guangxi Jin , Yilin Wang , Xi Dai , Xinguo Ren , Lixin He

High-performance thermoelectric oxides could offer a great energy solution for integrated and embedded applications in sensing and electronics industries. Oxides, however, often suffer from low Seebeck coefficient when compared with other…

材料科学 · 物理学 2020-08-25 M. Hussein N. Assadi , J. Julio Gutiérrez Moreno , Marco Fronzi

We found a new cobalt oxide (CaOH)1.14CoO2 by utilizing the high-pressure technique. X-ray and electron diffraction studies revealed that the compound has layer structure which consists of CdI2-type CoO2 layers and rock-salt-type double…

材料科学 · 物理学 2007-05-23 M. Shizuya , M. Isobe , Y. Baba , T. Nagai , M. Osada , K. Kosuda , S. Takenouchi , Y. Matsui , E. Takayama-Muromachi

Motivated by the newly discovered Co-based superconductor Na2CoSe2O, we performed systematic calculations of its electronic band structures using the density functional theory (DFT) plus the dynamical mean-field theory (DMFT) approaches.…

强关联电子 · 物理学 2025-12-02 Zhenchao Wu , Yingying Cao , Hong-Gang Luo , Yi-feng Yang

Half-metallicity, low magnetic damping and high curie temperature (TC) are crucial for application in spintronics and full Heusler alloys in this regard exhibit remarkable properties. Herein, we have considered Co2FeAl (CFA) and Fe2CoAl…

计算物理 · 物理学 2018-06-08 Lalrinkima , Gennady M. Mikhailov , D. P. Rai

The electronic, structural, optical, and thermoelectric properties of the Cs2O cubic structure have been investigated using density functional theory (DFT). The calculations utilize a full relativistic version of the full-potential…

材料科学 · 物理学 2024-06-11 Anjali Kumari , Kamal Kumar , Abhishek Kumar Mishra , Ramesh Sharma

The structural, electronic, and optical properties of twelve multicomponent oxides with layered structure, RAMO$_4$, where R$^{3+}$=In or Sc; A$^{3+}$=Al or Ga; and M$^{2+}$=Ca, Cd, Mg, or Zn, are investigated using first-principles density…

材料科学 · 物理学 2015-06-03 A. Murat , J. E. Medvedeva

The electronic structure of the low-temperature (LT) monoclinic magnetite, Fe3O4, is investigated using the local spin density approximation (LSDA) and the LSDA+U method. The self-consistent charge ordered LSDA+U solution has a pronounced…

强关联电子 · 物理学 2007-05-23 I. Leonov , A. N. Yaresko , V. N. Antonov , V. I. Anisimov

Spinel ferrites in general show a rich interplay of structural, electronic, and magnetic properties. Here, we particularly focus on zinc ferrite (ZFO), which has been observed experimentally to crystallise in the cubic $normal$ spinel…

材料科学 · 物理学 2018-10-26 Daniel Fritsch

Density functional theory within the local or semilocal density approximations (DFT-LDA/GGA) has become a workhorse in electronic structure theory of solids, being extremely fast and reliable for energetics and structural properties, yet…

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