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相关论文: Molecular conduction: paradigms and possibilities

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The interaction between vortex beam (VB) and molecule has drawn much attention in recent years, but the lack of theoretical method somehow limits its further analysis, especially when the molecular rotational degree of freedom is involved…

光学 · 物理学 2021-05-04 Guanming Lao

We show that the nonlinear I-V characteristics of mesoscopic samples with metallic conductivity should contain parts which are linear in the magnetic field and quadratic in the electric field. These contributions to the current are entirely…

介观与纳米尺度物理 · 物理学 2009-11-10 B. Spivak , A. Zyuzin

Microscopic biological systems operate far from equilibrium, are subject to strong fluctuations, and are composed of many coupled components with interactions varying in nature and strength. Researchers are actively investigating the…

统计力学 · 物理学 2023-12-25 Emma Lathouwers , David A. Sivak

We examine the potential-energy curves and polarization of the dipole moments of two static polar molecules under the influence of an external dc electric field and their anisotropic dipole-dipole interaction. We model the molecules as…

量子物理 · 物理学 2024-09-24 Felipe Isaule , Robert Bennett , Jörg B. Götte

Electronic transport properties of Au nano-structure are investigated using both experimental and theoretical analysis. Experimentally, stable Au nanowires were created using mechanically controllable break junction in air, and simultaneous…

计算物理 · 物理学 2009-11-07 H. Mehrez , Alex Wlasenko , Brian Larade , Jeremy Taylor , Peter Grutter , Hong Guo

Atomic-sized lead (Pb) contacts are deposited and dissolved in an electrochemical environment, and their transport properties are measured. Due to the electrochemical fabrication process, we obtain mechanically unstrained contacts and…

介观与纳米尺度物理 · 物理学 2010-09-21 F. -Q. Xie , F. Hüser , F. Pauly , Ch. Obermair , G. Schön , Th. Schimmel

Charge carrier transport through the probe-sample junction can have substantial consequences for outcomes of electrical and electromechanical atomic-force-microscopy (AFM) measurements. For understanding physical processes under the probe,…

材料科学 · 物理学 2020-05-05 K. N. Romanuk , D. O. Alikin , B. N. Slautin , A. Tselev , V. Ya. Shur , A. L. Kholkin

Coulomb drag is a transport phenomenon whereby long-range Coulomb interaction between charge carriers in two closely spaced but electrically isolated conductors induces a voltage (or, in a closed circuit, a current) in one of the conductors…

介观与纳米尺度物理 · 物理学 2016-05-25 B. N. Narozhny , A. Levchenko

The charge state of a molecule governs its physicochemical properties, such as conformation, reactivity and aromaticity, with implications for on-surface synthesis, catalysis, photo conversion and applications in molecular electronics. On…

介观与纳米尺度物理 · 物理学 2019-07-22 Shadi Fatayer , Florian Albrecht , Yunlong Zhang , Darius Urbonas , Diego Peña , Nikolaj Moll , Leo Gross

The influence of an electron-vibrational coupling on the laser control of electron transport through a molecular wire that is attached to several electronic leads is investigated. These molecular vibrational modes induce an effective…

介观与纳米尺度物理 · 物理学 2007-05-23 Jörg Lehmann , Sigmund Kohler , Volkhard May , Peter Hänggi

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

We calculate the conductance of a ballistic point contact to a superconducting wire, produced by the s-wave proximity effect in a semiconductor with spin-orbit coupling in a parallel magnetic field. The conductance G as a function of…

介观与纳米尺度物理 · 物理学 2015-03-18 M. Wimmer , A. R. Akhmerov , J. P. Dahlhaus , C. W. J. Beenakker

We present a theoretical study of the transport characteristics of molecular junctions, where first-row diatomic molecules are attached to (001) gold and platinum electrodes. We find that the conductance of all of these junctions is of the…

介观与纳米尺度物理 · 物理学 2015-05-13 J. Ferrer , V. M. Garcia-Suarez

We explore electron transport properties in molecular wires made of heterocyclic molecules (pyrrole, furan and thiophene) by using the Green's function technique. Parametric calculations are given based on the tight-binding model to…

介观与纳米尺度物理 · 物理学 2009-09-13 Santanu K. Maiti , S. N. Karmakar

In the field of molecular electronics, particularly in quantum transport studies, the orientation of molecules plays a crucial role. This orientation, with respect to the electrodes, can be defined through the cavity of ring-shaped…

材料科学 · 物理学 2023-02-17 A. Martinez-Garcia , T. de Ara , L. Pastor-Amat , C. Untiedt , E. B. Lombardi , W. Dednam , C. Sabater

Charge migration is a ubiquitous phenomenon with profound implications throughout many areas of chemistry, physics, biology and materials science. The long-term vision of designing functional materials with tailored molecular scale…

材料科学 · 物理学 2012-01-24 C. Gollub , S. Avdoshenko , R. Gutierrez , Y. Berlin , G. Cuniberti

A graphical representation based on the isothermal current-voltage (IV) measurements of typical memristive interfaces is presented. This is the starting point to extract relevant microscopic information of the parameters that control the…

材料科学 · 物理学 2017-04-26 C. Acha

The transport properties of nanostructured systems are deeply affected by the geometry of the effective connections to metallic leads. In this work we derive a conductance expression for interacting systems whose connectivity geometries do…

介观与纳米尺度物理 · 物理学 2017-09-15 Luis G. G. V. Dias da Silva , Caio H. Lewenkopf , Edson Vernek , Gerson J. Ferreira , Sergio E. Ulloa

The stability of molecular junctions under transport is of the utmost importance for the field of molecular electronics. This question is often addressed within the paradigm of current-induced heating of nuclear degrees of freedom or…

介观与纳米尺度物理 · 物理学 2022-12-26 André Erpenbeck , Yaling Ke , Uri Peskin , Michael Thoss

We review studies of vibrational energy transfer in a molecular junction geometry, consisting of a molecule bridging two heat reservoirs, solids or large chemical compounds. This setup is of interest for applications in molecular…

介观与纳米尺度物理 · 物理学 2016-06-22 Dvira Segal , Bijay Kumar Agarwalla