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Related papers: Shuttle Instability in Self-Assembled Coulomb Bloc…

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The topic of quantum fluctuations in quasi-1D superconductors, also called quantum phase slips (QPS), has attracted a significant attention. It has been shown that the phenomenon is capable to suppress zero resistivity of ultra-narrow…

Mesoscale and Nanoscale Physics · Physics 2013-11-14 J. S. Lehtinen , T. Rantala , K. Yu. Arutyunov

The tunneling through a ferromagnet/normal metal/ferromagnet double junction in the Coulomb blockade regime is studied, assuming that the spin relaxation time of electron in the central metallic island is sufficiently large. Using the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 H. Giang Bach , V. Hung Nguyen , T. Anh Pham

Artificial nanostructures, fabricated by placing building blocks such as atoms or molecules in well-defined positions, are a powerful platform in which quantum effects can be studied and exploited on the atomic scale. Here, we report a…

Mesoscale and Nanoscale Physics · Physics 2023-12-04 Taner Esat , Markus Ternes , Ruslan Temirov , F. Stefan Tautz

A new approach of using distributed transmission line analogy for solving transport equations for ballistic nanostructures is applied for solving the three dimensional problem of the electron transport in gated ballistic nanostructures with…

Mesoscale and Nanoscale Physics · Physics 2016-06-01 G. R. Aizin , J. Mikalopas , M. Shur

We find an analytical expression for the conductance of a single electron transistor in the regime when temperature, level spacing, and charging energy of a grain are all of the same order. We consider the model of equidistant energy levels…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Serguei Vorojtsov

Shuttling protocols designed by shortcut-to-adiabaticity techniques may suffer from perturbations and imperfect implementations. We study the motional excitation of a single ion shuttled in harmonic traps with time-dependent, "systematic"…

Quantum Physics · Physics 2022-01-20 Hilario Espinós , Javier Echanobe , Xiao-Jing Lu , Juan Gonzalo Muga

Charge transport within Coulomb blockade regime in two-dimensional nanoparticle arrays exhibits nonlinear I-V characteristics, where the level of nonlinearity strongly associates with the array's architecture. Here, we use different…

Mesoscale and Nanoscale Physics · Physics 2015-12-22 Bosiljka Tadic , Miroslav Andjelkovic , Milovan Suvakov

An expansion of energy characteristics of wide thin slab of thickness L in power of 1/L is constructed using the free-electron approximation and the model of a potential well of finite depth. Accuracy of results in each order of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 V. V. Pogosov , V. P. Kurbatsky , E. V. Vasyutin

We study voltage response of nano-bridge based DC-SQUID fabricated on a Si\_{3}N\_{4} membrane. Such a configuration may help in reducing 1/f noise, which originates from substrate fluctuating defects. We find that the poor thermal coupling…

Superconductivity · Physics 2010-10-22 Eran Segev , Oren Suchoi , Oleg Shtempluck , Fei Xue , Eyal Buks

Current fluctuations related to the discreteness of charge passing through small constrictions are termed shot noise. This unavoidable noise provides both advantages - being a direct measurement of the transmitted particles' charge, and…

Mesoscale and Nanoscale Physics · Physics 2022-04-06 Idan Tamir , Verena Caspari , Daniela Rolf , Christian Lotze , Katharina J. Franke

We explore the malleability of ultra-small metal nanoparticles by means of ab initio calculations. It is revealed that, when strained, such nanoparticles exhibit complex behavior, including bifurcation between slow and fast quakes of their…

Mesoscale and Nanoscale Physics · Physics 2017-11-06 Alireza Saffarzadeh , George Kirczenow

Transport properties of a gated nanostructure depend crucially on the coupling of its states to the states of electrodes. In the case of a single quantum dot the coupling, for a given quantum state, is constant or can be slightly modified…

The shearing instability of a dilute granular mixture composed of smooth inelastic hard spheres or disks is investigated. By using the Navier-Stokes hydrodynamic equations, it is shown that the scaled transversal velocity mode exhibits a…

Statistical Mechanics · Physics 2015-06-15 J. Javier Brey , M. J. Ruiz-Montero

Nanostructures have the immense potential to supplant the traditional metallic structure as they show enhanced mechanical properties through strain hardening. In this paper, the effect of grain size on the hardening mechanism of Al-Cu…

Materials Science · Physics 2017-12-27 Satyajit Mojumder , Tawfiqur Rakib , Mohammad Motalab , Dibakar Datta

Layered CoO$_2$ is of great interest for its promising properties but is meta-stable in its bulk form. CoO$_2$ was synthesized by converting the quasi-one-dimensional crystal structure of bulk Ca$_3$Co$_2$O$_6$ via a hydrothermal treatment.…

Materials Science · Physics 2024-08-23 Simon Hettler , Kankona Singha Roy , Raul Arenal , Leela S. Panchakarla

Colloidal particles in polymer solutions and functionalized nanoparticles often exhibit short-range attraction coupled with long-range repulsion (SALR) leading to the spontaneous formation of symmetric patterns. Chiral nanostructures formed…

Soft Condensed Matter · Physics 2019-09-19 Jakub Pekalski , Eldar Bildanov , Alina Ciach

Due to the Coulomb blockade effect, electrons rarely bunch during transport, a phenomenon observed only in a few specially engineered mesoscopic configurations. In this work, we introduce an atomically resolved shot-noise study to…

Strongly Correlated Electrons · Physics 2025-11-18 A. Maiti , M. Amato , V. S. Stolyarov , H. Aubin , J. Estève , F. Pistolesi , M. Aprili , F. Massee

We combine the BCS self-consistency condition, a semiclassical expansion for the spectral density and interaction matrix elements to describe analytically how the superconducting gap depends on the size and shape of a 2d and 3d…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Antonio M. Garcia-Garcia , Juan Diego Urbina , Emil A. Yuzbashyan , Klaus Richter , Boris L. Altshuler

A general linear stability analysis of simple metal nanowires is presented using a continuum approach which correctly accounts for material-specific surface properties and electronic quantum-size effects. The competition between surface…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 D. F. Urban , J. Bürki , C. A. Stafford , Hermann Grabert

This Letter identifies the physical mechanism for the quench of turbulent resistivity in 2D MHD. Without an imposed, ordered magnetic field, a multi-scale, blob-and-barrier structure of magnetic potential forms spontaneously. Magnetic…

Fluid Dynamics · Physics 2019-05-07 Xiang Fan , P. H. Diamond , L. Chacón
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