Tight binding
Quantum tight binding chains with dissipative coupling
... We have suggested and discussed a tight-binding dissipatively coupled quantum chain. It consists of TLSs pairwise coupled to the same Markovian reservoirs. We have shown that despite being composed of a ...
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Charge self consistent empirical tight binding cluster method for semiconductor surface structures
... Next came an examination of how to construct the total energy of a cluster of atoms, by using Chadi’s total energy algorithm. This involves splitting the total energy into two parts, a sum over occupied states o f ...
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Spin orbit effects in the bismuth atom and dimer: tight-binding and density functional theory
... introduce tight-binding models for the bismuth atom and dimer that include the spin–orbit ...the tight-binding ...The tight-binding models are presented in section ...the ...
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A Two-Band Tight-Binding Model of Spin-Polarized Transport in Magnetic Tunnel Junctions
... Abstract: The main features determining spin-dependent transport in magnetic tunnel junctionsare well appreciated now mainly due to ab initio calculations. Nevertheless, it seems useful to have a comparatively simple ...
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Scaling approach to tight binding transport in realistic graphene devices:the case of transverse magnetic focusing
... Ultra-clean graphene sheets encapsulated between hexagonal boron nitride crystals host two- dimensional electron systems in which low-temperature transport is solely limited by the sample size. We revisit the theoretical ...
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QM/MM methods for crystalline defects Part 1 : Locality of the tight binding model
... 4.1. Tight-binding model for point ...the tight binding model is the construction and rigorous analysis of QM/MM hybrid schemes for crystalline defects, along the lines of ...total ...
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Band structure calculation of the semiconductors and their alloys by Tight Binding Model using SciLab
... The band gap calculation, of the alloy semicondutors, isdone by a simulating tool, called SciLab. The computer code was developed in Scilab based on the formulation of Tight Binding Model. The tight ...
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Predicting the Phonon Dispersion in Different Carbon Nanotubes using Tight Binding Method
... Abstract - The phonon dispersion relations of four armchair and four zigzag carbon nanotubes have been calculated using tight binding method. First of all, the electronic structure of carbon nanotubes is ...
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Structures and Local Electronic States of Dislocation Loop in 4H SiC via a Linear Scaling Tight Binding Study
... The atomic- and electronic-level structures of a dislocation loop and a stacking fault in 4H-SiC crystal are investigated by using large-scale tight-binding (TB) molecular-dynamics simulation. We employ a ...
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Tight-binding study of Si2Cn (n=3 to 42) fullerene-like or nanodiamonds microclusters: are Si atoms isolated or adjacent?
... the tight binding approximation, derived from the Hückel theory, is a topological-type method connected with graph theory, which only deals with the bonding between first-neighbour atoms, but neither with ...
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New Tacrine−Huperzine A Hybrids (Huprines): Highly Potent Tight Binding Acetylcholinesterase Inhibitors of Interest for the Treatment of Alzheimer's Disease
... the tight-binding nature of the above two inhibitors has been evidenced by the dependence of their activity on the time of incubation of the enzyme with the inhibitor, although both of them have shown to be ...
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Ewald summation on a helix : a route to self-consistent charge density-functional based tight-binding objective molecular dynamics
... We explore the generalization to the helical case of the classical Ewald method, the harbinger of all modern self-consistent treatments of waves in crystals, including ab initio electronic structure meth- ods. Ewald-like ...
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Quantum transport simulations of graphene nanoribbon devices using Dirac equation calibrated with tight binding π bond model
... We developed a tight-binding Dirac equation for practi- cal and accurate numerical investigation of the electron transport in GNR devices. Based on our knowledge, this is the first time that the surface ...
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Simian virus 40 large tumor antigen on replicating viral chromatin: tight binding and localization on the viral genome.
... 65-76 0022-538X/83/070065-12$02.00/0 Copyright C 1983, American Society for Microbiology Simian Virus 40 Large Tumor Antigen on Replicating Viral Chromatin: Tight Binding and Localizatio[r] ...
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Structure and stability of molecular crystals with many body dispersion inclusive density functional tight binding
... Accurate prediction of structure and stability of molecular crystals is crucial in ma- terials science and requires reliable modeling of long-range dispersion interactions. Semi- empirical electronic structure methods ...
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(3+1)-dimensional topological quantum field theory from a tight-binding model of interacting spinless fermions
... We now consider the behaviour of our lattice model at its physical boundary. Several approaches are pos- sible based, for example, on the Symanzik method [48] or on gauge invariance analysis [14, 49]. Focusing on the ...
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Analysis of transition state mimicry by tight binding aminothiazoline inhibitors provides insight into catalysis by human : O-GlcNAcase
... difference between NMR resonance frequencies for a compound of interest and those for a standard, such as 3-nitrophenol, can be used to determine the ratio (R) of the acid Fig. 2 Representative Morrison data and fi tted ...
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Intersublattice magnetocrystalline anisotropy using a realistic tight-binding method based on maximally localized Wannier functions
... realistic tight-binding method provides an effective approach to evaluate and analyze MAE while retaining the accuracy of corresponding first-principles ...
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Generalized tight-binding transport model for graphene nanoribbon-based systems
... extended tight-binding model that includes up to third-nearest-neighbor hopping and a Hubbard mean- field interaction term is tested against ab initio local spin-density approximation results of band ...
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The Amorphous-Crystal Interface in Silicon: a Tight-Binding Simulation
... orthogonal tight-binding ~ TB ! Hamiltonian that was param- etrized to represent accurately a wide range of bulk and sur- face structures of ...the tight-binding studies can also be used as ...
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