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The stability and electronic structure of a single monatomic Al wire has been studied using the ab initio pseudopotential method. The Al wire undergoes two structural rearrangements under compression, i.e., zigzag configurations at angles…

材料科学 · 物理学 2015-06-24 Jin-Cheng Zheng , Hui-Qiong Wang , A. T. S. Wee , C. H. A. Huan

We investigate the electronic structure of the c(4 x 2) reconstructed Ge(001) surface using band structure calculations based on density functional theory and the generalized gradient approximation. In particular, we take into account the…

材料科学 · 物理学 2009-11-13 Udo Schwingenschloegl , Cosima Schuster

Motivated by an experimental report of iridate superlattices, we performed first-principle electronic structure calculations for SrIrO$_3$/SrTiO$_3$. Heterostructuring causes SrIrO$_3$ to become Sr$_2$IrO$_4$-like, and the system has the…

强关联电子 · 物理学 2014-07-01 Kang-Hwan Kim , Heung-Sik Kim , Myung Joon Han

The structural, electronic, optical and vibrational properties of LiN$_3$ under high pressure have been studied using plane wave pseudopotentials within the generalized gradient approximation for the exchange and correlation functional. The…

材料科学 · 物理学 2013-11-07 K. Ramesh Babu , Ch. Bheema Lingam , Surya P. Tewari , G. Vaitheeswaran

A density functional theory study of the structural and electronic properties and relative stability of narrow SP3 silicon nanotubes of different growth orientations is presented. All nanotubes studied and their corresponding wire…

介观与纳米尺度物理 · 物理学 2012-12-05 Alon Hever , Jonathan Bernstein , Oded Hod

We have calculated the electronic structure of V2O3 associated with the V3+ ions taking into account strong on-site electron correlations and the spin-orbit coupling. Closely lying 9 states of the subterm 3T1g are a physical reason for…

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

Materials in which electrons occupy interstitial sites as anions are called electrides and exhibit unusual dimensionality-dependent electronic behavior. These properties make electrides attractive for catalysis, transparent conductors, and…

材料科学 · 物理学 2026-01-01 Lee A. Burton

All-solid-state batteries (ASSBs) offer a promising route to safer batteries with superior energy density compared to conventional Li-ion batteries (LIBs). However, the design of the composite cathode and optimization of the underlying…

We present the first ab initio study of the geometry, electronic structure, charged states, bonding and vibrational modes of the recently synthesized fullerene-like As@Ni12@As20 cluster which has icosahedral point symmetry [Science, 300,…

材料科学 · 物理学 2009-11-10 Tunna Baruah , Rajendra R. Zope , Steven L. Richardson , Mark R. Pederson , ;

We investigate the electronic structure at the surface of the correlated oxide Ca$_3$Ru$_2$O$_7$, a low-symmetry ruthenate oxide which hosts an unconventional polar-metal phase. From a combination of angle-resolved photoemission…

We compute the structure of an azamacrocycle, C26H18N6. Two approximatively planar elliptical structures with C2 or CI symmetry are found to be nearly degenerate. The roughly circular conformation observed in metal complexes turns out to be…

凝聚态物理 · 物理学 2016-09-28 K. Doll , G. Zwicknagl

Using density functional theory the ground state structural, electronic, and magnetic properties of monatomic lithium and sodium chains with low average density are investigated. A metallic, zigzag ground state structure is predicted but,…

材料科学 · 物理学 2007-05-23 A. Bergara , J. B. Neaton , N. W. Ashcroft

A computational scheme for the investigation of complex materials with strongly interacting electrons is formulated which is able to treat atomic displacements, and hence structural relaxation, caused by electronic correlations. It combines…

强关联电子 · 物理学 2008-09-03 I. Leonov , N. Binggeli , Dm. Korotin , V. I. Anisimov , N. Stojic , D. Vollhardt

We report the structural, elastic and vibrational properties of five ionic-molecular solid oxidizers MNO$_3$ (M = Li, Na, K) and MClO$_3$ (M = Na, K). By treating long range electron-correlation effects, dispersion corrected method leads to…

材料科学 · 物理学 2016-09-05 N. Yedukondalu , G. Vaitheeswaran

Stochastic density functional theory is applied to analyze the conductivity of strong two species electrolytes at arbitrary field strengths. The corresponding stochastic equations for the density of the electrolyte species are solved by…

统计力学 · 物理学 2016-05-04 Vincent Démery , David S Dean

We have looked into the structural, mechanical, optoelectronic, superconducting state and thermophysical aspects of intermetallic compound Zr$_3$Ir using the density functional theory (DFT). Many of the physical properties, including…

材料科学 · 物理学 2023-07-12 Razu Ahmed , Md. Sajidul Islam , M. M. Hossain , M. A. Ali , M. M. Uddin , S. H. Naqib

We present the results of self-consistent calculations of the electronic shell and supershell structure for clusters having up to 6000 valence electrons. The ionic background is described in terms of a homogeneous jellium. The calculations…

凝聚态物理 · 物理学 2009-10-28 Erik Koch , Olle Gunnarsson

We present a review of the basic ideas and techniques of the spectral density functional theory which are currently used in electronic structure calculations of strongly-correlated materials where the one-electron description breaks down.…

强关联电子 · 物理学 2009-11-11 G. Kotliar , S. Y. Savrasov , K. Haule , V. S. Oudovenko , O. Parcollet , C. A. Marianetti

Two-dimensional (2D) layered magnetic materials are generating a great amount of interest for the next generation of electronic devices thanks to their remarkable properties associated to spin dynamics. The recently discovered layered…

The low-temperature structure of A1C60 (A=K, Rb) is an ordered array of polymerized C60 chains, with magnetic properties that suggest a non-metallic ground state. We study the paramagnetic state of this phase using first-principles…

mtrl-th · 物理学 2008-02-03 S. C. Erwin , G. V. Krishna , E. J. Mele