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Electron transmission through chiral molecules induced by circularly polarized light can be very different for mirror-image structures, a peculiar fact given that the electronic energy spectra of the systems are identical. We propose that…

化学物理 · 物理学 2009-11-13 Spiros S. Skourtis , David N. Beratan , Ron Naaman , Abraham Nitzan , David H. Waldeck

Controlling the direction and magnitude of both heat and electronic currents using rectifiers has significant implications for the advancement of molecular circuit design. In order to facilitate the implementation of new transport phenomena…

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

Rectification, the preferential transport of a current in one direction through a system, has garnered significant attention in molecules because of its importance for controlling thermal and electronic currents at the nanoscale. Here, we…

介观与纳米尺度物理 · 物理学 2024-05-20 Renai Chen , Galen T. Craven

Despite the desirability of polymers for use in many products due to their flexibility, light weight, and durability, their status as thermal insulators has precluded their use in applications where thermal conductors are required. However,…

计算物理 · 物理学 2023-10-26 Ethan Abraham , Mohammadhasan Dinpajooh , Clàudia Climent , Abraham Nitzan

Chiral induced spin selectivity is a phenomenon that has been attributed to chirality, spin-orbit interactions, and non-equilibrium conditions, while the role of electron exchange and correlations have been investigated only marginally…

介观与纳米尺度物理 · 物理学 2021-04-28 J. Fransson

Molecular chirality is a key design property for many technologies including bioresponsive imaging, circularly polarized light detection and emission, molecular motors and switches. Imaging and manipulating the primary steps of transient…

We investigate charge and energy transport in a three-terminal quantum Hall conductor. The peculiar properties of chiral propagation along the edges of the sample have important consequences on the response to thermal biases. Based on the…

介观与纳米尺度物理 · 物理学 2015-07-13 Rafael Sánchez , Björn Sothmann , Andrew N. Jordan

We demonstrate experimentally a method of varying the degree of directionality in laser-induced molecular rotation. To control the ratio between the number of clockwise and counter-clockwise rotating molecules (with respect to a fixed…

化学物理 · 物理学 2021-05-05 Alexander A. Milner , Valery Milner

Chiral phonons have been proposed to be involved in various physical phenomena, yet the chirality of molecular normal modes has not been well defined mathematically. Here we examine two approaches for assigning and quantifying the chirality…

介观与纳米尺度物理 · 物理学 2025-01-07 Ethan Abraham , Abraham Nitzan

The theoretical explanation for the chiral-induced spin selectivity effect, in which electrons' passage through a chiral system depends on their spin and the handedness of the system, remains vague. Although most experimental work was…

介观与纳米尺度物理 · 物理学 2022-03-01 Tapan Kumar Das , Francesco Tassinari , Ron Naaman , Jonas Fransson

Motivated by recent advances in the investigation of fluctuation-driven ratchets and flows in excited granular media, we have carried out experimental and simulational studies to explore the horizontal transport of granular particles in a…

统计力学 · 物理学 2009-10-31 Z. Farkas , P. Tegzes , A. Vukics , T. Vicsek

We present a rigorous study of vibrational relaxation in p-H2 + p-H2 collisions at cold and ultracold temperatures and identify an efficient mechanism of ro-vibrational energy transfer. If the colliding molecules are in different rotational…

量子物理 · 物理学 2008-04-02 Goulven Quéméner , Naduvalath Balakrishnan , Roman V. Krems

Here we propose a mechanism by which spin polarization can be generated dynamically in chiral molecular systems undergoing photo-induced electron transfer. The proposed mechanism explains how spin polarization emerges in systems where…

介观与纳米尺度物理 · 物理学 2021-08-19 Thomas P. Fay , David T. Limmer

We theoretically explore the dynamics of a chiral active Ornstein Uhlenbeck particle confined in a two-dimensional anisotropic harmonic trap. The particle is driven by chirality and is coupled to two orthogonal heat baths, potentially at…

软凝聚态物质 · 物理学 2025-11-17 S Deion , F Adersh , M Sahoo

We study heat transfer between conductors, mediated by the excitation of a monomodal harmonic oscillator. Using a simple model, we show that the onset of rectification in the system is directly related to the nonlinearity of the electron…

介观与纳米尺度物理 · 物理学 2009-11-13 Dvira Segal

We present the first microscopic model for chirality-induced spin selectivity effect in electron-transfer, in which the internal degrees of freedom of the chiral bridge are explicitly included. By exactly solving this model on short chiral…

介观与纳米尺度物理 · 物理学 2024-10-08 A. Chiesa , E. Garlatti , M. Mezzadri , L. Celada , R. Sessoli , M. R. Wasielewski , R. Bittl , P. Santini , S. Carretta

We theoretically examine the effect of the coupling of the transport electrons to a vibrational mode of the molecule on the ac linear-response conductance of molecular junctions. Representing the molecule by a single electronic state, we…

介观与纳米尺度物理 · 物理学 2015-05-27 A. Ueda , O. Entin-Wohlman , A. Aharony

We report on a theoretical investigation concerning the polaronic effect on the transport properties of a charge carrier in the one-dimensional molecular chain. Our technique is based on the Feynman's path integral approach. Analytical…

介观与纳米尺度物理 · 物理学 2015-12-10 Sikarin Yoo-Kong , Watchara Liewrian

We study charge and energy transfer in two-site molecular electronic junctions in which electron transport is assisted by a vibrational mode. To understand the role of mode harmonicity/anharmonicity on transport behavior, we consider two…

介观与纳米尺度物理 · 物理学 2015-09-01 Bijay Kumar Agarwalla , Jian-Hua Jiang , Dvira Segal

We explore the role of molecular vibrations in the chirality-induced spin selectivity (CISS) effect in the context of charge transport through a molecular nanojunction. We employ a mixed quantum-classical approach that combines Ehrenfest…

介观与纳米尺度物理 · 物理学 2024-09-04 Rudolf Smorka , Samuel L. Rudge , Michael Thoss
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