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The nonlocal electron-phonon couplings in organic semiconductors responsible for the fluctuation of intermolecular transfer integrals has been the center of interest recently. Several irreconcilable scenarios coexist for the description of…

材料科学 · 物理学 2021-08-04 Weitang Li , Jiajun Ren , Zhigang Shuai

We investigate the dynamics of correlated charge carriers in the vicinity of the Mott metal-to-insulator transition in various of the title quasi-two-dimensional organic charge-transfer salts by means of fluctuation (noise) spectroscopy.…

强关联电子 · 物理学 2015-03-19 Jens Brandenburg , Jens Müller , Dieter Schweitzer , John A. Schlueter

Charge transport plays a crucial role in manifold potential applications of two-dimensional materials, including field effect transistors, solar cells, and transparent conductors. At most operating temperatures, charge transport is hindered…

材料科学 · 物理学 2023-05-03 Samuel Poncé , Miquel Royo , Massimiliano Stengel , Nicola Marzari , Marco Gibertini

We study how electrons move across a graphene sheet when it encounters two magnetic barriers with a region in between that is continuously driven by laser light. Rather than acting as a static obstacle, this illuminated middle section…

介观与纳米尺度物理 · 物理学 2025-12-04 Rachid El Aitouni , Miloud Mekkaoui , Pablo Díaz , David Laroze , Ahmed Jellal

Recently the creation of novel topological states of matter by a periodic driving field has attracted great attention. To motivate further experimental and theoretical studies, we investigate interesting aspects of Floquet bands and…

量子气体 · 物理学 2015-06-19 Longwen Zhou , Hailong Wang , Derek Y. H. Ho , Jiangbin Gong

We investigate the phase structure and conductivity of a relativistic fluid in a circulating electric field with a transverse magnetic field. This system exhibits behavior similar to other driven systems such as strongly coupled driven CFTs…

高能物理 - 理论 · 物理学 2018-10-17 Andrew Baumgartner , Michael Spillane

In this paper, we introduce the Floquet Ehrenfest and Floquet surface hopping approaches to study the nonadiabatic dynamics in the laser-dressed solid systems. We demonstrate that these two approaches can be formulated in both real and…

化学物理 · 物理学 2024-04-22 Jingqi Chen , Yu Wang , Wenjie Dou

We investigate the semiclassical electronic transport properties of the bilayer silicene-like system in the presence of charged impurity. The trigonal warping due to the interlayer hopping, and its effect to the band structure of bilayer…

介观与纳米尺度物理 · 物理学 2018-09-18 Chen-Huan Wu

We theoretically investigate the electronic and transport properties of a semi-Dirac material under the influence of an external time dependent periodic driving field (irradiation) by means of Floquet theory. We explore the inelastic…

介观与纳米尺度物理 · 物理学 2018-12-26 SK Firoz Islam , Arijit Saha

Photon-assisted charge transport through a double barrier structure under a time periodic field in graphene is studied. Within the framework of the Floquet formalism and using the transfer matrix method, the transmission probabilities for…

介观与纳米尺度物理 · 物理学 2015-03-12 H. P. Ojeda-Collado , C. Rodríguez-Castellanos

We recently developed an approach for calculation of the electron-phonon (electron-ion in a more general case) coupling in materials based on tight-binding molecular dynamics simulations. In the present work we utilize this approach to…

材料科学 · 物理学 2023-02-17 Nikita Medvedev , Igor Milov

Photon-assisted charge transport through a double barrier laser structure, separated by a region assisted by a magnetic field, is studied. Employing Floquet theory and matrix formalism, the transmission probabilities for the central band…

介观与纳米尺度物理 · 物理学 2024-10-18 Rachid El Aitouni , Miloud Mekkaoui , Abdelhadi Bahaoui , Ahmed Jellal

We investigate multi-"photon" interband excitation processes in an optical lattice that is driven periodically in time by a modulation of the lattice depth. Assuming the system to be prepared in the lowest band, we compute the excitation…

量子气体 · 物理学 2016-09-16 Christoph Sträter , André Eckardt

The transport in double-barrier heterostructures of electrons interacting with longitudinal optical phonons in the presence of parallel electric and magnetic fields is analyzed theoretically with the aid of a 3-dimensional quantum transport…

介观与纳米尺度物理 · 物理学 2009-11-07 Dae Kwan Kim , Patrick Roblin , Kwang-Sup Soh , Chul Koo Kim

Floquet topological phases emerge when systems are periodically driven out-of-equilibrium. They gained attention due to their external control, which allows to simulate a wide variety of static systems by just tuning the external field in…

量子物理 · 物理学 2024-11-20 Álvaro Gómez-León

We discuss the effect of the dielectric environment (insulators and metal gates) on electronic transport in two-dimensional (2D) transition metal dichalcogenides (TMD) monolayers. We employ well-known ab initio methods to calculate the…

介观与纳米尺度物理 · 物理学 2022-08-24 Sanjay Gopalan , Maarten L. Van de Put , Gautam Gaddemane , Massimo V. Fischetti

The quasi-two-dimensional nature of the charge carriers energy spectrum in layered conductors leads to specific effects in an external magnetic field. The magnetoresistance of layered conductors in a wide range of strong magnetic fields…

统计力学 · 物理学 2010-06-09 O. V. Kirichenko , Yu. A. Kolesnichenko , V. G. Peschansky

The interactions between electrons and lattice vibrational modes play the key role in determining the carrier transport properties, thermoelectric performance and other physical quantities related to phonons in semiconductors. However, for…

Contact electrification give rise to charge accumulation at the interface when two materials are brought into contact with each other. The charge accumulation at the interface will diffuse to the interior of the conducting material if the…

介观与纳米尺度物理 · 物理学 2026-01-21 Sandeep Kumar , Ravindra G Bhardwaj

A periodic drive could alter the effective exchange interactions in magnetic materials. Here, we explore how exchange pathways affect the effective interactions of periodically driven magnetic materials. Aiming to apply Floquet engineering…

强关联电子 · 物理学 2020-09-03 Swati Chaudhary , Alon Ron , David Hsieh , Gil Refael
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