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We study theoretically the electron current across a monolayer graphene/hexagonal boron nitride/bilayer graphene tunnelling junction in an external magnetic field perpendicular to the layers. We show that change in effective tunnelling…

Mesoscale and Nanoscale Physics · Physics 2019-02-18 J. J . P. Thompson , D. J. Leech , M. Mucha-Kruczyński

We investigate the current-voltage characteristics of a II-VI semiconductor resonant-tunneling diode coupled to a diluted magnetic semiconductor injector. As a result of an external magnetic field, a giant Zeeman splitting develops in the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Slobodskyy , C. Gould , T. Slobodskyy , G. Schmidt , L. W. Molenkamp , D. Sanchez

We investigate the role of intra-molecular conformational disorder and inter-molecular electronic interactions on the electronic structure of disorder clusters of poly-p-phenylene vinylene (PPV) oligomers. Classical molecular dynamics is…

Soft Condensed Matter · Physics 2009-11-13 Ping Yang , Enrique R. Batista , Sergei Tretiak , Avadh Saxena , Richard L. Martin , D. L. Smith

We report the low temperature current-voltage (I-V) characteristics studies in quasi-one dimensional conducting polymer nanofibers. We find a threshold voltage Vt below which little current flows at temperatures below 30-40 K. For V > Vt…

Soft Condensed Matter · Physics 2009-11-11 A. N. Aleshin , H. J. Lee , S. H. Jhang , H. S. Kim , K. Akagi , Y. W. Park

We analyze the effect of the long-range interaction on the transport properties through ordered and disordered one-dimensional metallic nanoparticle arrays. We discuss how the threshold voltage, the I-V curves and the voltage drop through…

Mesoscale and Nanoscale Physics · Physics 2007-09-25 E. Bascones , J. A. Trinidad , V. Estevez , A. H. MacDonald

Transport properties of a series of poly(3-hexylthiophene) organic field effect transistors with Cr, Cu and Au source/drain electrodes were examined over a broad temperature range. The current-voltage characteristics of the injecting…

Disordered Systems and Neural Networks · Physics 2007-05-23 B. H. Hamadani , D. Natelson

The current-voltage characteristic of a planar vacuum diode with electrons possessing velocity distribution function during an emission from the cathode (electron beam) is theoretically considered in this article. The electron beam movement…

General Physics · Physics 2008-05-14 Dimitar G. Stoyanov

Transport properties of holes in InP nanowires were calculated considering electron-phonon interaction via deformation potentials, the effect of temperature and strain fields. Using molecular dynamics, we simulate nanowire structures,…

We develop a theory of Coulomb interaction-related contribution to the photogalvanic current of the carriers of charge in two-dimensional non-centrosymmetric Dirac materials possessing a nontrivial structure of valleys and exposed to an…

Mesoscale and Nanoscale Physics · Physics 2024-06-13 V. M. Kovalev , A. V. Parafilo , O. V. Kibis , I. G. Savenko

Hybrid ionic-electronic conductors have the potential to generate memory effects and neuronal behavior. The functionality of these mixed materials depends on ion motion through thin polarizable channels. Here, we explore different…

The conductivity of $\alpha$-polyvinylidene fluoride ($\alpha$-PVDF) is obtained from dielectric measurements performed in the frequency domain at several temperatures. At temperatures above the glass-transition, the conductivity can be…

Materials Science · Physics 2016-08-16 Enis Tuncer , Michael Wegener , Peter Frübing , Reimund Gerhard-Multhaupt

Conductivity of monolayer and two-layer graphene is considered with due regard for mutual drag of band electrons and holes. Search of contribution of the drag in conductivity shows that this effect can sufficiently influence on mobility of…

Mesoscale and Nanoscale Physics · Physics 2010-11-05 I. I. Boiko

Photo-induced insulator-metal transition in VO$_2$ and the related transient and multi-timescale structural dynamics upon photoexcitation are explained within a unified framework. Holes created by photoexcitation weaken the V-V bonds and…

Materials Science · Physics 2013-01-29 Xun Yuan , Wenqing Zhang , Peihong Zhang

The coherent charge transport through an illuminated graphene ribbon is studied as function of electronic doping, frequency and strength of the electromagnetic driving, for monochromatic circularly polarized light. We focus on the DC…

Mesoscale and Nanoscale Physics · Physics 2017-12-13 Jonathan Atteia , Jens. H. Bardarson , Jérome Cayssol

A desktop experiment has been done to show the nonlinearity in the I-V characteristics of an ion conducting electrochemical micro-system. Its chaotic dynamics is being reported for the first time which has been captured by an electronic…

Chaotic Dynamics · Physics 2015-06-04 Sangeeta Rawat , Barnamala Saha , Awadhesh Prasad , Amita Chandra

Photo-induced charge transfer of positive and negative charges across the interface between an ordered organic semiconductor and a polymeric insulator is observed in the field-effect experiments. Immobilization of the transferred charge in…

Materials Science · Physics 2009-11-10 V. Podzorov , M. E. Gershenson

The current-voltage characteristics (IVC) of $S-c-N$ point contacts of superconductors with a small coherence length ${{\xi}_{0}}$ reveal steps with discrete values of the differential resistance. This peculiarity is associated with a…

The current voltage (IV) characteristics for perpendicular transport through two sequentially coupled wires of finite length is calculated analytically. The transport within a Coulomb blockade step is assisted by plasmon resonances that…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 A. L. Chudnovskiy

A mechanism of quantum-mechanical tunneling is based on electron-wavefunction and is used to explain ohmic contact as well as tunnel and Zener diodes. Tunneling is the important example of wave-particle duality. In this study, an attempt is…

Applied Physics · Physics 2026-03-25 Jianming Li

We report temperature-dependent current-voltage (I - V - T) and output light power-voltage or current (P - V - T) or (P - I - T) characteristics of 1550 nm tunneling injection quantum dot (TI QD) laser diodes. Experimental data is…

Mesoscale and Nanoscale Physics · Physics 2021-08-17 V. Mikhelashvili , S. Bauer , I. Khanonkin , O. Eyal , G. Seri , L. Gal , J. P. Reithmaier , G. Eisenstein