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Using the self-consistent Hartree-Fock approximation for spinless electrons at zero temperature, we study tunneling of the interacting electron gas through a single delta-barrier in a finite one-dimensional (1D) wire connected to contacts.…

Mesoscale and Nanoscale Physics · Physics 2007-12-07 Andrej Gendiar , Martin Mosko , Pavel Vagner , Radoslav Nemeth

The escalating demand for memory scaling requires switching mechanisms that remain reliable at atomic thickness while operating with minimal energy consumption. Sliding ferroelectricity provides a promising platform for this challenge: the…

Mesoscale and Nanoscale Physics · Physics 2026-03-31 Ruixue Wang , Jiangang Chen , Er Pan , Wunan Wang , Zefen Li , Fan Yang , Hongmiao Zhou , Zhaoren Xie , Qing Liu , Xiao Luo , Junhao Chu , Wenwu Li , Fucai Liu

Molecular devices, as future electronics, seek low-resistivity contacts for the energy saving. At the same time, the contacts should intensify desired properties of tailored electronic elements. In this work, we focus our attention on two…

Mesoscale and Nanoscale Physics · Physics 2015-06-02 Malgorzata Wierzbowska , Michal F. Rode , Mikolaj Sadek , Andrzej L. Sobolewski

The conductance curves of point-contact tunnel junctions between Ag and $\rm Ba_{1-x}K_xBiO_3$ ($x\simeq 0.4$) reveal a BCS behavior with low leakage current at zero voltage and some broadening of the superconducting-gap structure. In the…

Superconductivity · Physics 2017-04-04 P. Samuely , N. L. Bobrov , A. G. M. Jansen , P. Wyder , S. N. Barilo , S. V. Shiryaev

In the past few years there has been a significant rise in the short-circuit current levels in transmission and distribution networks, it due to the increasing demands on power and the addition of sources of distributed generations. It…

Superconductivity · Physics 2016-02-26 Xiuchang Zhang , H. S. Ruiz , Z. Zhong , T. A. Coombs

The transport of fluids at the nanoscale is fundamental to manifold biological and industrial processes, ranging from neurotransmission to ultrafiltration. Yet, it is only recently that well-controlled channels with cross-sections as small…

Mesoscale and Nanoscale Physics · Physics 2022-10-05 Nikita Kavokine , Paul Robin , Lydéric Bocquet

Strong coupling between electronic and mechanical degrees of freedom is a basic requirement for the operation of any nanoelectromechanical device. In this Review we consider such devices and in particular investigate the properties of small…

Mesoscale and Nanoscale Physics · Physics 2010-04-07 Robert I. Shekhter , Fabio Santandrea , Gustav Sonne , Leonid Y. Gorelik , Mats Jonson

Separators, which are in many ways the three-dimensional equivalent to two-dimensional nulls, are important sites for magnetic reconnection. Magnetic reconnection occurs in strong current layers which have very short length scales. The aim…

Solar and Stellar Astrophysics · Physics 2014-12-17 J. E. H. Stevenson , C. E. Parnell , E. R. Priest , A. L. Haynes

Magnetic reconnection has been observed in the transition region of quasi-parallel shocks. In this work, the particle-in-cell method is used to simulate three-dimensional reconnection in a quasi-parallel shock. The shock transition region…

Space Physics · Physics 2022-09-07 J. Ng , L. -J. Chen , N. Bessho , J. Shuster , B. Burkholder , J. Yoo

Altermagnets can replace ferromagnets in tunnel junctions, yielding large tunneling magnetoresistance, ultrafast switching, and low-power functionality. While most studies explore the linear-response regime, interesting features emerge at…

Mesoscale and Nanoscale Physics · Physics 2026-05-14 Sajjan Sheoran , Luke Keenan , Declan Nell , Stefano Sanvito

Kinetic inductances of superconducting nanostrips with a meander pattern are theoretically investigated based on the London model, and the effect of the current crowding at the turns of the nanostrips is considered. The complex current…

Superconductivity · Physics 2023-05-15 Yasunori Mawatari

We noted that the tunneling-percolation framework is quite well understood at the extreme cases of percolation-like and hopping-like behaviors but that the intermediate regime has not been previously discussed, in spite of its relevance to…

Materials Science · Physics 2015-05-18 G. Ambrosetti , C. Grimaldi , I. Balberg , T. Maeder , A. Danani , P. Ryser

A decrease in current with increasing voltage, often referred to as negative differential resistance (NDR), has been observed in many electronic devices and can usually be understood within a one-electron picture. However, NDR has recently…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Bhaskaran Muralidharan , Supriyo Datta

Nodal-line semimetals (NLSMs) contains Dirac/Weyl type band-crossing nodes extending into shapes of line, loop and chain in the reciprocal space, leading to novel band topology and transport responses. Robust NLSMs against spin-orbit…

We study a model of resonant point-contact tunneling of a single Luttinger-liquid lead, using the boundary state formulation. The model is described by a single chiral Fermion in one dimensional space with one point contact interaction at…

High Energy Physics - Theory · Physics 2016-05-04 Taejin Lee

Current and its noise in a ferromagnetic double tunnel barrier device with a small spacer particle were studied in the framework of the sequential tunneling approach. Analytical formulae were derived for electron tunneling through the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Bogdan R. Bulka

We measure tunneling through a single quantum level in a carbon nanotube quantum dot connected to resistive metal leads. For the electrons tunneling to/from the nanotube, the leads serve as a dissipative environment, which suppresses the…

Mesoscale and Nanoscale Physics · Physics 2010-10-08 Yu. Bomze , H. Mebrahtu , I. Borzenets , A. Makarovski , G. Finkelstein

Typical measurements of nanowire devices rely on end-to-end measurements to reveal mesoscopic phenomena such as quantized conductance or Coulomb blockade. However, creating nanoscale tunnel junctions allows one to directly measure other…

Mesoscale and Nanoscale Physics · Physics 2019-07-31 J. Damasco , S. T. Gill , S. Gazibegovic , G. Badawy , E. P. A. M. Bakkers , N. Mason

Using the Keldysh formalism the tunneling current through a hybrid structure where a confined magnetic insulator (I) is sandwiched between two non-magnetic leads is calculated. The leads can be either normal metals (M) or superconductors…

Strongly Correlated Electrons · Physics 2009-11-13 N. Sandschneider , W. Nolting

The propagation of filaments in the Scrape Off Layer (SOL) of tokamaks largely determine the plasma profiles in the region. In a conduction limited SOL, parallel temperature gradients are expected, such that the resistance to parallel…

Plasma Physics · Physics 2016-02-17 Luke Easy , Fulvio Militello , John Omotani , Nick Walkden , Benjamin Dudson
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