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相关论文: Irreversibility and hysteresis in redox molecular …

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We use a numerically exact real-time path integral Monte Carlo scheme to compute electron transfer dynamics between two redox sites within a spin-boson approach. The case of asymmetric reactions is studied in detail in the least understood…

凝聚态物理 · 物理学 2009-11-10 L. Muehlbacher , R. Egger

Hysteresis in organic electrochemical transistors (OECT) is a basic effect in which the measured current depends on the voltage sweep direction and velocity. This phenomenon has an important impact on different aspects of the application of…

应用物理 · 物理学 2024-04-29 Juan Bisquert , Baurzhan Ilyassov , Nir Tessler

We investigate the origin of the hysteresis observed in the transfer characteristics of back-gated field-effect transistors with an exfoliated MoS2 channel. We find that the hysteresis is strongly enhanced by increasing either gate voltage,…

介观与纳米尺度物理 · 物理学 2017-10-24 Antonio Di Bartolomeo , Luca Genovese , Filippo Giubileo , Laura Iemmo , Giuseppe Luongo , Tobias Foller , Marika Schleberger

A theory is developed to describe the coupled transport of energy and charge in networks of electron donor-acceptor sites which are seated in a thermally heterogeneous environment, where the transfer kinetics are dominated by Marcus-type…

介观与纳米尺度物理 · 物理学 2019-08-02 Galen T. Craven , Abraham Nitzan

In this work we show that in a microfluidic network and in low Reynolds numbers a system can be irreversible because of hysteresis effects.The network, which is employed in our simulations, is taken from recent experiments. The network…

流体动力学 · 物理学 2013-05-29 Mehran Djalali Behzad , Hamed Seyed-allaei , Mohammad Reza Ejtehadi

The dynamics of spectral transport in two-dimensional turbulent convection of electrically conducting fluids is studied by means of direct numerical simulations (DNS) in the frame of the magnetohydrodynamic (MHD) Boussinesq approximation.…

太阳与恒星天体物理 · 物理学 2015-05-13 Dan Škandera , Wolf-Christian Müller

The methods of Nicholson and Shain and Randles-Sevcik are the paradigms of voltammetry of redox species. However, as they were originally developed for aqueous redox couples, they cannot be directly applied to solid redox films such as…

化学物理 · 物理学 2025-03-20 Keyvan Malaie

The effect of a thermal environment on electron (or hole) transfer through molecular bridges and on the electron conduction properties of such bridges is studied. Our steady state formalism based on an extension of the Redfield theory (D.…

凝聚态物理 · 物理学 2009-11-07 Dvira Segal , Abraham Nitzan

We demonstrate the role of proximity effect in the thermal hysteresis of superconducting constrictions. From the analysis of successive thermal instabilities in the transport characteristics of micron-size superconducting quantum…

超导电性 · 物理学 2015-06-05 Nikhil Kumar , T. Fournier , H. Courtois , C. B. Winkelmann , Anjan K. Gupta

We show that the nonreciprocity of hydrodynamic electron transport in noncentrosymmetric conductors with broken time-reversal symmetry (TRS) is significantly enhanced compared to the disorder-dominated regime. This enhancement is caused by…

介观与纳米尺度物理 · 物理学 2026-01-26 E. Kirkinis , L. Bonds , A. Levchenko , A. V. Andreev

The majority of dynamical studies in power systems focus on the high voltage transmission grids where models consider large generators interacting with crude aggregations of individual small loads. However, new phenomena have been observed…

物理与社会 · 物理学 2015-06-12 Charlie Duclut , Scott Backhaus , Michael Chertkov

Nonreciprocal transport phenomena indicate that the forward and backward flows differ, and are attributed to broken inversion symmetry. In this paper, we study the nonreciprocity of a thermal and thermoelectric transport of electronic…

介观与纳米尺度物理 · 物理学 2019-03-13 Ryota Nakai , Naoto Nagaosa

Recent experiments indicate that electromagnetic hysteresis behavior can be exhibited at the molecular level.A MD simulation using 2-body potentials and switches to form and break bonds is implemented to determine whether chemical reaction…

计算物理 · 物理学 2007-05-23 Christopher G. Jesudason

We consider electron transfer from a redox to an electrode through and adsorbed intermediate. The formalism is developed to cover all regimes of coverage factor, from lone adsorbate to monolayer regime. The randomness in the distribution of…

介观与纳米尺度物理 · 物理学 2009-12-16 A. V. B. Cruz , A. K. Mishra , W. Schmickler

The conductance of a molecular junction is commonly determined by either charge-transfer-doping, where alignment of the Fermi energy to the molecular levels is achieved, or tunnelling through the tails of molecular resonances within the…

介观与纳米尺度物理 · 物理学 2016-08-31 R. Gutierrez , G. Fagas , K. Richter , F. Grossmann , R. Schmidt

Granular superconductivity effects in a polycrystalline sample of ruthenocuprate RuSr$_2$(Gd$_{1.5}$Ce$_{0.5})$Cu$_2$O$_{10-\delta}$ are studied. The main attention has been devoted to manifestation of these effects in current and…

超导电性 · 物理学 2015-06-05 B. I. Belevtsev , E. Yu. Beliayev , D. G. Naugle , K. D. D. Rathnayaka

Voltage-driven memristive switching has been reported in molecular junctions, yet its microscopic origin often remains elusive. Here, we study three rigid OPE-like derivatives that lack an obvious internal switching pathway using…

Signals recorded from neurons with extracellular planar sensors have a wide range of waveforms and amplitudes. This variety is a result of different physical conditions affecting the ion currents through a cellular membrane. The…

Electron transmission through molecules and molecular interfaces has been a subject of intensive research due to recent interest in electron transfer phenomena underlying the operation of the scanning tunneling microscope (STM) on one hand,…

凝聚态物理 · 物理学 2015-06-24 Abraham Nitzan

We derive an explict bias dependent expression for electron transfer reaction rate from a solvated redox to a electrode through a bridged molecule of arbitrary length. The interaction of the solvated redox with the solvent is modelled as a…

介观与纳米尺度物理 · 物理学 2010-09-02 A. V. B. Cruz , A. K. Mishra , W. Schmickler