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The article explores the ion flux response of a capacitor configuration to an alternating voltage. The model system comprises a symmetric binary electrolyte confined between plan-parallel capacitor plates. The AC response is investigated…

化学物理 · 物理学 2018-10-03 Sonja Babel , Michael Eikerling , Hartmut Löwen

We study nonlinear resonance of coupled modes in nano-mechanical systems. To reveal the qualitative features of the dynamics, we consider the limiting cases, where the results can be obtained analytically. For 1:3 resonance, we find the…

介观与纳米尺度物理 · 物理学 2017-02-03 O. Shoshani , S. W. Shaw , M. I. Dykman

Motivated by recent experiments, where a voltage biased Josephson junction is placed in series with a resonator, the classical dynamics of the circuit is studied in various domains of parameter space. This problem can be mapped onto the…

介观与纳米尺度物理 · 物理学 2015-12-09 S. Meister , M. Mecklenburg , V. Gramich , J. T. Stockburger , J. Ankerhold , B. Kubala

Remarkable features have been predicted for the mechanical fluctuations at the bistability transition of a classical oscillator coupled capacitively to a quantum dot [Phys. Rev. Lett. 115, 206802 (2015)]. These results have been obtained in…

介观与纳米尺度物理 · 物理学 2018-04-25 Rémi Avriller , B Murr , F. Pistolesi

This article is concerned with statistics of addition spectra for systems of identical charged particles. A classical model is suggested in order to study fluctuations of Coulomb blockade peak spacings in large two-dimensional semiconductor…

介观与纳米尺度物理 · 物理学 2009-10-31 Yshai Avishai , Daniel Berend , Richard Berkovits

We study the electron-phonon relaxation (dephasing) rate in disordered semiconductors and low-dimensional structures. The relaxation is determined by the interference of electron scattering via the deformation potential and elastic electron…

介观与纳米尺度物理 · 物理学 2009-11-11 A. Sergeev , M. Yu. Reizer , V. Mitin

The current noise spectrum of a single-electron transistor (SET) coupled to a nano-mechanical resonator is calculated in the classical regime. Correlations between the charge on the SET island and the position of the resonator give rise to…

介观与纳米尺度物理 · 物理学 2009-11-10 A. D. Armour

We investigate the properties of a hybrid single electron transistor, involving a small superconducting island sandwiched between normal metal leads, which is driven by dc plus ac voltages. In order to describe its properties we derive from…

We examine the properties of atomic current in a superfluid oscillating circuit consisting of a mesoscopic channel that connects two reservoirs of a Bose-Einstein condensate. We investigate the presence of a critical current in the channel…

量子物理 · 物理学 2024-04-18 Xue Yang , Wenkai Bai , Chen Jiao , Wu-Ming Liu , Jun-Hui Zheng , Tao Yang

Transport properties of ferromagnetic/non-magnetic/ferromagnetic single electron transistors are investigated as a function of external magnetic field, temperature, bias and gate voltage. By designing the magnetic electrodes to have…

介观与纳米尺度物理 · 物理学 2009-11-07 Jan Johansson , Mattias Urech , David Haviland , V. Korenivski

We study the relaxation dynamics of electron distribution function on the island of a single electron transistor. We focus on the 'interaction without coherence regime in which an electron coherence can be neglected but quantum fluctuations…

介观与纳米尺度物理 · 物理学 2025-02-04 Ya. I. Rodionov I. S. Burmistrov N. M. Chtchelkatchev

Spin dependent transport in a ferromagnet/superconductor/ferromagnet single electron transistor is studied theoretically with spin accumulation, spin relaxation, gap suppression, and charging effects taken into account. A strong dependence…

介观与纳米尺度物理 · 物理学 2009-11-10 J. Johansson , V. Korenivski , D. B. Haviland , A. Brataas

Electrical contacts between nano-engineered systems are expected to constitute the basic building blocks of future nano-scale electronics. However, the accurate characterization and understanding of electrical contacts at the nano-scale is…

介观与纳米尺度物理 · 物理学 2012-04-03 Christophe Brun , Konrad H. Müller , I-Po Hong , François Patthey , Christian Flindt , Wolf-Dieter Schneider

We study transport across a time-dependent magnetic barrier present on the surface of a three-dimensional topological insulator. We show that such a barrier can be implemented for Dirac electrons on the surface of a three-dimensional…

介观与纳米尺度物理 · 物理学 2020-07-29 Adithi Udupa , K. Sengupta , Diptiman Sen

We investigate the current-voltage (IV) characteristics of a model single-electron transistor where mechanical motion, subject to strong dissipation, of a small metallic grain is possible. The system is studied both by using Monte Carlo…

介观与纳米尺度物理 · 物理学 2009-11-07 T. Nord , L. Y. Gorelik , R. I. Shekhter , M. Jonson

By solving the Bogoliubov - de Gennes equation self-consistently in the presence of a non-equilibrium quasi-particle distribution, we compute the current-voltage characteristic of a phase coherent superconducting island with a tunnel…

凝聚态物理 · 物理学 2009-10-28 A Martin , CJ Lambert

We study electron transport through a small metallic island in the perturbative regime. Using a recently developed diagrammatic technique, we calculate the occupation of the island as well as the conductance through the transistor in forth…

介观与纳米尺度物理 · 物理学 2009-10-30 Jürgen König , Herbert Schoeller , Gerd Schön

In a nanomagnet (whose total spin S< 1000), very small polarized currents can lead to magnetic reversal. Treating on the same footing the transport and magnetic properties of a nanomagnet connected to magnetic leads via tunneling barriers,…

介观与纳米尺度物理 · 物理学 2009-11-10 X. Waintal , O. Parcollet

We have observed well-defined phase slips between quantized persistent current states around a toroidal atomic (23Na) Bose-Einstein condensate. These phase slips are induced by a weak link (a localized region of reduced superfluid density)…

量子气体 · 物理学 2013-12-06 K. C. Wright , R. B. Blakestad , C. J. Lobb , W. D. Phillips , G. K. Campbell

Nanoscale resonators that oscillate at high frequencies are useful in many measurement applications. We studied a high-quality mechanical resonator made from a suspended carbon nanotube driven into motion by applying a periodic radio…

介观与纳米尺度物理 · 物理学 2010-01-27 G. A. Steele , A. K. Huettel , B. Witkamp , M. Poot , H. B. Meerwaldt , L. P. Kouwenhoven , H. S. J. van der Zant