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相关论文: Electron transport through single conjugated organ…

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Electron transport properties through single conjugated molecules sandwiched between two non-superconducting electrodes are studied by the use of Green's function technique. Based on the tight-binding model, we do parametric calculations to…

介观与纳米尺度物理 · 物理学 2009-11-06 Santanu K. Maiti

We analyze the effect of a gate on the conductance of molecules by separately evaluating the gate-induced polarization and the potential shift of the molecule relative to the leads. The calculations use ab initio density functional theory…

材料科学 · 物理学 2007-05-23 San-Huang Ke , Harold U. Baranger , Weitao Yang

A first-principles approach based on Density Functional Theory and Non-Equilibrium Green's functions is used to study the molecular transport system consisting of benzenedithiolate connected with monoatomic gold and platinum electrodes.…

介观与纳米尺度物理 · 物理学 2017-10-10 M. Rumetshofer , G. Dorn , L. Boeri , E. Arrigoni , W. von der Linden

The effect of vibrational motion on resonant charge transport through single molecule junctions is investigated. The study is based on a combination of first-principles electronic structure calculations to characterize the system and…

其他凝聚态物理 · 物理学 2007-12-24 Claudia Benesch , Martin Cizek , Jiri Klimes , Michael Thoss , Wolfgang Domcke

Electron transport properties of a biphenyl molecule are studied based on the Green's function formalism. The molecule is sandwiched between two metallic electrodes, where each benzene ring is threaded by a magnetic flux $\phi$. The results…

介观与纳米尺度物理 · 物理学 2009-09-15 Santanu K. Maiti

We investigate the effects of lateral interactions on the conductance of two molecules connected in parallel to semi-infinite leads. The method we use combines a Green function approach to quantum transport with density functional theory…

介观与纳米尺度物理 · 物理学 2009-09-29 Rui Liu , San-Huang Ke , Harold U. Baranger , Weitao Yang

Based on the matrix Green's function method combined with hybrid tight-binding / density functional theory, we calculate the conductances of a series of gold-dithiol molecule-gold junctions including benzenedithiol (BDT),…

介观与纳米尺度物理 · 物理学 2009-11-11 Zhanyu Ning , Jingzhe Chen , Shimin Hou , Jiaxing Zhang , Zhenyu Liang , Jin Zhang , Rushan Han

The effect on molecular transport due to chemical modification of the metal-molecule interface is investigated, using as an example the prototypical molecular device formed by attaching a p-disubstituted benzene molecule onto two gold…

介观与纳米尺度物理 · 物理学 2009-11-10 Yongqiang Xue , Mark A. Ratner

We explore electron transport properties for the model of benzene-1, 4-dithiolate (BDT) molecule and for some other geometric models of benzene molecule attached to two semi-infinite one-dimensional metallic electrodes using the Green's…

介观与纳米尺度物理 · 物理学 2010-04-13 Santanu K. Maiti

Electronic transport characteristics through a single phenalenyl molecule sandwiched between two metallic electrodes are investigated by the use of Green's function technique. A parametric approach, based on the tight-binding model, is used…

介观与纳米尺度物理 · 物理学 2009-11-06 Santanu K. Maiti

The effect of dephasing on electron transport through a benzene molecule is carefully examined using a phenomenological model introduced by B\"{u}ttiker. Within a tight-binding framework all the calculations are performed based on the…

介观与纳米尺度物理 · 物理学 2011-04-14 Moumita Dey , Santanu K. Maiti , S. N. karmakar

Non-equilibrium Green's functions (NEGF) formalism combined with extended Huckel (EHT) and charging model are used to study electrical conduction through single-molecule junctions. Analyzed molecular complex is composed of asymmetric…

介观与纳米尺度物理 · 物理学 2009-11-11 Kamil Walczak , Sergey Edward Lyshevski

Using the tight-binding model and the generalized Green's function formalism, the effect of quantum interference on the electron transport through the benzene molecule in a semiconductor/benzene/semiconductor junction is numerically…

介观与纳米尺度物理 · 物理学 2016-08-09 Javad Vahedi , Zahra Sartipi

Using benzene sandwiched between two Au leads as a model system, we investigate from first principles the change in molecular conductance caused by different atomic structures around the metal-molecule contact. Our motivation is the…

材料科学 · 物理学 2007-05-23 San-Huang Ke , Harold U. Baranger , Weitao Yang

We do parametric calculations to elucidate multi-terminal electron transport properties through a molecular system where a single phenalenyl molecule is attached to semi-infinite one-dimensional metallic leads. A formalism based on the…

介观与纳米尺度物理 · 物理学 2010-05-25 Paramita Dutta , Santanu K. Maiti , S. N. Karmakar

We present the first in a series of microscopic studies of electrical transport through individual molecules with metallic contacts. We view the molecules as ``heterostructures'' composed of chemically well-defined atomic groups, and…

介观与纳米尺度物理 · 物理学 2009-11-10 Yongqiang Xue , Mark A. Ratner

The influence of vibrational motion on electron conduction through single molecules bound to metal electrodes is investigated employing first-principles electronic-structure calculations and projection-operator Green's function methods.…

介观与纳米尺度物理 · 物理学 2009-11-11 C. Benesch , M. Thoss , W. Domcke , M. Cizek

Using a first principles approach, we study the electron transport properties of a new class of molecular wires containing fluorenone units, whose features open up new possibilities for controlling transport through a single molecule. We…

介观与纳米尺度物理 · 物理学 2007-05-23 C. J. Lambert , I. M. Grace , T. Papadopoulos

We measure the low bias conductance of a series of substituted benzene diamine molecules while breaking a gold point contact in a solution of the molecules. Transport through these substituted benzenes is by means of nonresonant tunneling…

We present a general analytical formula and an ab initio study of quantum interference in multi-branch molecules. Ab initio calculations are used to investigate quantum interference in a benzene-1,2-dithiolate (BDT) molecule sandwiched…

介观与纳米尺度物理 · 物理学 2016-08-14 R. E. Sparks , V. M. García-Suárez , D. Zs. Manrique , C. J. Lambert
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