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In this paper we present theoretical analysis of the electron transport in conducting polymers. We concentrate on the study of the effects of temperature on characteristics of the transport. We treat a conducting polymers in a metal state…

Materials Science · Physics 2008-10-23 Natalya A. Zimbovskaya

We have studied the electrical field induced conductance transition in thin film of Perylenetetracarboxylic dianhydride sandwiched between two metal electrodes, from an insulating state to conducting state with a high ON-OFF ratio in those…

Other Condensed Matter · Physics 2007-05-23 Ruchi Agrawal , Subhasis Ghosh

The electronic structure of an infinite poly-guanine - poly-cytosine DNA molecule in its dry A-helix structure is studied by means of density-functional calculations. An extensive study of 30 nucleic base pairs is performed to validate the…

Soft Condensed Matter · Physics 2009-11-07 E. Artacho , M. Machado , D. Sanchez-Portal , P. Ordejon , J. M. Soler

We propose a model for bacterial Quorum Sensing based on an auxiliary electrostatic-like interac-tion originating from a fictitious electrical charge that represents bacteria activity. A cooperative mechanism for charge/activity exchange is…

Biological Physics · Physics 2023-02-22 Eleonora Alfinito , Maura Cesaria , Matteo Beccaria

Many bacteria use rotating helical flagellar filaments to swim. The filaments undergo polymorphic transformations in which the helical pitch and radius change abruptly. These transformations arise in response to mechanical loading, changes…

Soft Condensed Matter · Physics 2010-05-26 Srikanth V. Srigiriraju , Thomas R. Powers

Room-temperature quasi-ballistic electron transport in double-wall carbon nanotubes (DWNT) is demonstrated. Conductance dependence on the length was measured by submerging DWNTs into liquid mercury. The conductance plots show plateaus,…

Materials Science · Physics 2009-11-10 Hisashi Kajiura , Houjin Huang , Alexey Bezryadin

Many fascinating properties of biological active matter crucially depend on the capacity of constituting entities to perform directed motion, e.g., molecular motors transporting vesicles inside cells or bacteria searching for food. While…

Statistical Mechanics · Physics 2023-06-21 Pietro Luigi Muzzeddu , Édgar Roldán , Andrea Gambassi , Abhinav Sharma

We demonstrate that a simple phenomenological approach can be used to simulate electronic conduction in molecular wires under thermal effects induced by the surrounding environment. This "Landauer-B\"uttiker's probe technique" can properly…

Chemical Physics · Physics 2015-08-25 Michael Kilgour , Dvira Segal

We present a short review of various experiments that measure charge transfer and charge transport in DNA. Some general comments are made on the possible connection between 'chemistry-style' charge transfer experiments that probe…

Disordered Systems and Neural Networks · Physics 2009-11-10 N. P. Armitage , M. Briman , G. Gruner

Living fungal mycelium networks are proven to have properties of memristors, capacitors and various sensors. To further progress our designs in fungal electronics we need to evaluate how electrical signals can be propagated through mycelium…

Emerging Technologies · Computer Science 2023-04-24 Richard Mayne , Nic Roberts , Neil Phillips , Roshan Weerasekera , Andrew Adamatzky

This paper reports conduction mechanism in a-\sbse over a wide range of temperature (238K to 338K) and frequency (5Hz to 100kHz). The d.c. conductivity measured as a function of temperature shows semiconducting behaviour with activation…

Condensed Matter · Physics 2011-11-22 Sanjeev Gautam , D. K. Shukla , Shelly Jain , N. Goyal

When transported in confined geometries rigid fibers show interesting transport dynamics induced by friction with the top and bottom walls. Fiber flexibility causes an additional coupling between fiber deformation and transport and is…

Ballistic transport occurs whenever electrons propagate without collisions deflecting their trajectory. It is normally observed in conductors with a negligible concentration of impurities, at low temperature, to avoid electron-phonon…

Mesoscale and Nanoscale Physics · Physics 2018-04-25 Youngwoo Nam , Dong-Keun Ki , David Soler-Delgado , Alberto F. Morpurgo

Electron transport in small graphene nanoribbons is studied by microwave emulation experiments and tight-binding calculations. In particular, it is investigated under which conditions a transport gap can be observed. Our experiments provide…

Mesoscale and Nanoscale Physics · Physics 2017-01-18 Thomas Stegmann , John A. Franco-Villafañe , Ulrich Kuhl , Fabrice Mortessagne , Thomas H. Seligman

Recent advances in synthesis and electrical characterization of nanofibers and nanotubes made out of various conjugated polymers attract attention of the research community to studies of transport properties of these materials. In this work…

Mesoscale and Nanoscale Physics · Physics 2013-01-22 Natalya A. Zimbovskaya

We report on the direct observation of the thermoelectric transport in a nondegenerate correlated electron system formed on the surface of liquid helium. We find that the microwave-induced excitation of the vertical transitions of electrons…

Other Condensed Matter · Physics 2021-11-10 Ivan Kostylev , A. A. Zadorozhko , M. Hatifi , Denis Konstantinov

Molecular crystals are a flexible platform to induce novel electronic phases. Due to the weak forces between molecules, intermolecular distances can be varied over relatively larger ranges than interatomic distances in atomic crystals. On…

A nanodevice consisting of a conductive cylinder in an axial magnetic field with one-dimensional wires attached to its lateral surface is considered. An explicit form for transmission and reflection coefficients of the system as a function…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 V. A. Margulis , M. A. Pyataev

Characteristic features of transverse transport along the $a^*$ axis in the NbSe$_3$ charge-density-wave conductor are studied. At low temperatures, the $I$-$V$ characteristics of both layered structures and NbSe$_3$-NbSe$_3$ point contacts…

Superconductivity · Physics 2009-11-07 Yu. I. Latyshev , A. A. Sinchenko , L. N. Bulaevskii , V. N. Pavlenko , P. Monceau

We present a review of some results concerning electronic transport properties of quasicrystals. After a short introduction to the basic concepts of quasiperiodicity, we consider the experimental transport properties of electrical…

Condensed Matter · Physics 2009-10-30 S. Roche , Guy Trambly de Laissardiere , D. Mayou
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