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相关论文: A Density Functional Theory Based Electron Transpo…

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In our theoretical study where we combine a nonequilibrium Green's function (NEGF) approach with density functional theory (DFT) we investigate branched compounds containing ferrocene moieties in both branches which due to their metal…

介观与纳米尺度物理 · 物理学 2017-10-11 Xin Zhao , Georg Kastlunger , Robert Stadler

In our theoretical study where we combine a nonequilibrium Green's function (NEGF) approach with density functional theory (DFT) we investigate compounds containing a ferrocene moiety which is connected to i) thiol anchor groups on both…

化学物理 · 物理学 2019-01-30 Xin Zhao , Robert Stadler

We present a method which uses density functional theory (DFT) to treat transport through a single molecule connected to two conducting leads for the weak and intermediate coupling. This case is not accessible to standard non-equilibrium…

介观与纳米尺度物理 · 物理学 2011-01-21 Fatemeh Mirjani , Joseph M. Thijssen

Two-terminal spintronic devices remain challenging to model under realistic operating conditions, where the interplay of complex electronic structures, correlation effects and bias-driven non-equilibrium dynamics may significantly impact…

强关联电子 · 物理学 2025-11-25 Declan Nell , Milos Radonjic , Ivan Rungger , Liviu Chioncel , Stefano Sanvito , Andrea Droghetti

Non-equilibrium Greens function techniques (NEGF) combined with Density Functional Theory (DFT) calculations have become a standard tool for the description of electron transport through single molecule nano-junctions in the coherent…

材料科学 · 物理学 2009-11-13 R. Stadler , V. Geskin , J. Cornil

We present density functional theory (DFT) based non-equilibrium Green's function (NEGF) calculations for the conductance through a nitrobenzene molecule, which is anchored by pyridil-groups to Au electrodes. This work is building up on…

材料科学 · 物理学 2013-05-29 Robert Stadler

By carrying out density functional theory (DFT) analysis within the Keldysh non-equilibrium Green's function (NEGF) framework, we investigate the quantum transport properties of Au-C60-Au molecular junctions from the first principles. We…

材料科学 · 物理学 2007-05-23 N. Sergueev , D. Roubtsov , H. Guo

We present a novel implementation of the first-principles approach to molecular charge transport using the non-equilibrium Green's function formalism in combination with the ADF/BAND periodic band-structure DFT code, together with results…

材料科学 · 物理学 2014-03-18 C. J. O. Verzijl , J. M. Thijssen

The electrostatic gating effects on molecular transistors are investigated using the density functional theory (DFT) combined with the nonequilibrium Green's function (NEGF) method. When molecular energy levels are away from the Fermi…

介观与纳米尺度物理 · 物理学 2011-09-28 D. Hou , J. H. Wei

We describe an ab initio method for calculating the electronic structure, electronic transport, and forces acting on the atoms, for atomic scale systems connected to semi-infinite electrodes and with an applied voltage bias. Our method is…

材料科学 · 物理学 2009-11-07 Mads Brandbyge , Jose-Luis Mozos , Pablo Ordejon , Jeremy Taylor , Kurt Stokbro

Nonequilibrium Greens function techniques (NEGF) combined with density functional theory (DFT) calculations have become a standard tool for the description of electron transport through single molecule nanojunctions in the coherent…

介观与纳米尺度物理 · 物理学 2015-11-05 Victor Geskin , Robert Stadler , Jérôme Cornil

A surface-adsorbed molecule is contacted with the tip of a scanning tunneling microscope (STM) at a pre-defined atom. On tip retraction, the molecule is peeled off the surface. During this experiment, a two-dimensional differential…

介观与纳米尺度物理 · 物理学 2024-01-30 C. Toher , R. Temirov , A. Greuling , F. Pump , M. Kaczmarski , M. Rohlfing , G. Cuniberti , F. S. Tautz

To explore whether the density-functional theory non-equilibrium Green's function formalism (DFT-NEGF) provides a rigorous framework for quantum transport, we carried out time-dependent density functional theory (TDDFT) calculations of the…

材料科学 · 物理学 2011-07-01 ChiYung Yam , Xiao Zheng , GuanHua Chen , Yong Wang , Thomas Frauenheim , Thomas A. Niehaus

The quantum conductance properties of pyrene molecule and its silicone-doped variant between semi-infinite aluminum nano-chains have been investigated by using the density functional theory (DFT) combined with the non-equilibrium Green…

介观与纳米尺度物理 · 物理学 2014-02-24 Alireza Rastkar Ebrahimzade , Badie Ghavami , Jaber Jahanbin Sardroodi , Sadegh Afshari , Mina Yaghoobi

Electron transport and quantum conductance through an armchair graphene and its oxidized graphene- containing form were investigated by the density functional theory (DFT) method and the implementation of the non-equilibrium Green function…

介观与纳米尺度物理 · 物理学 2015-01-29 Badie Ghavami , Alireza Rastkar-Ebrahimzadeh

Electron transport through a diatomic molecular tunnel junction shows wave like interference phenomenon. By using Keldysh non-equilibrium Green's function (NEGF) theory, we have explicitly presented current and differential conductance…

介观与纳米尺度物理 · 物理学 2012-12-18 Muhammad Imran

An efficient implementation of the nonequilibrium Green function (NEGF) method combined with the density functional theory (DFT) using localized pseudo-atomic orbitals (PAOs) is presented for electronic transport calculations of a system…

介观与纳米尺度物理 · 物理学 2015-05-14 Taisuke Ozaki , Kengo Nishio , Hiori Kino

The recent fabrication of graphene nanoribbon (GNR) field-effect transistors poses a challenge for first-principles modeling of carbon nanoelectronics due to many thousand atoms present in the device. The state of the art quantum transport…

介观与纳米尺度物理 · 物理学 2010-04-28 Denis A. Areshkin , Branislav K. Nikolic

Conjugated molecules are materials which are widely studied and developed for molecular electronic technologies focusing on single molecule devices. In this paper we observed the molecular conductance of single molecule based on n phenyl…

材料科学 · 物理学 2015-10-15 Setianto , B. Aradi , Th. Niehaus

For defining the conductance of single molecule junctions with a redox functionality in an electrochemical cell, two conceptually different electron transport mechanisms, namely coherent tunnelling and vibrationally induced hopping compete…

介观与纳米尺度物理 · 物理学 2015-06-22 Georg Kastlunger , Robert Stadler
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