The European Physical Journal B

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Structural evidence of charge renormalization in semi-dilute solutions of highly charged polyelectrolytes
The European Physical Journal B - - 1999
W. Essafi, F. Lafuma, C.E. Williams
We show experimentally that Manning counterion condensation also leads to a renormalization of the charge density at high concentrations of highly charged, flexible, hydrophilic polyelectrolytes. Investigations by small angle neutron and X-ray scattering of semi-dilute solutions of poly(acrylamide-co-sodium-2-acrylamido-2-methylpropane sulfonate) at different charge densities above the condensatio...... hiện toàn bộ
Navier-Stokes-like equations applicable to adaptive cruise control traffic flows
The European Physical Journal B - Tập 61 - Trang 363-370 - 2008
Y. G. Liu, Z. S. You, J. L. Zhou
Under the scenario in which, within a traffic flow, each vehicle is controlled by adaptive cruise control (ACC), and the macroscopic one-vehicle probability distribution function fits the Paveri-Fontana hypothesis, a set of reduced Paveri-Fontana equations considering the ACC effect is derived. With the set, by maximizing the specially defined informational entropy deviating from a certain referen...... hiện toàn bộ
Low-energy electron transmission in a partially unzipped zigzag nanotube
The European Physical Journal B - Tập 77 - Trang 433-440 - 2010
Yu. O. Klymenko
Based on the nearest-neighbor tight-binding approximation, we present exact analytical expressions for electron transmission in nanotube/ribbon junctions, generated by incomplete unzipping of zigzag nanotubes. By assuming one-dimer-line difference in the widths of the leads, it is demonstrated that such a contact exhibits zero backscattering of low-energy electrons entering from the graphene side...... hiện toàn bộ
Magnetic properties of dc magnetron sputtered and evaporated amorphous films
The European Physical Journal B - - 2002
H. Kockar, T. Meydan
Compositions of Fe81B13.5Si3.5C2, Fe67Co18Si1B14 and Fe5.85Co72.15Mo2B15Si5 were deposited on to rigid and flexible substrates for the first time using a dc sputtering source as part of a novel Rotating Cryostat (RC). The films sputtered on silicon and glass show only isotropic magnetisation, whereas those sputtered on a polyimide (KaptonTM) substrate exhibited either isotropic or anisotropic magn...... hiện toàn bộ
Quench dynamics and defects formation in the Ising chain in a transverse magnetic field
The European Physical Journal B - Tập 95 - Trang 1-13 - 2022
Alexander I. Nesterov, Mónica F. Ramírez, Sergey G. Ovchinnikov
We study quench dynamics and defects formation in the one-dimensional quantum Ising chain in a time-dependent transverse magnetic field, given by a semi-infinite pulse and as the pulse of the finite width. The system’s final state depends on the quench time and pulse amplitude, resulting in the emergence of topological defects, and consists of a mixture of ground and excited states. We obtain a ne...... hiện toàn bộ
Scaling approach to the theory of frequency dependent hopping conductivity of disordered systems
The European Physical Journal B - Tập 26 Số 1 - Trang 11-18 - 1977
N. Grewe
Limits of structure stability of simple liquids revealed by study of relative fluctuations
The European Physical Journal B - Tập 86 - Trang 1-5 - 2013
A. L. Goncharov, V. V. Melent’ev, E. B. Postnikov
We analyse the inverse reduced fluctuations (inverse ratio of relative volume fluctuation to its value in the hypothetical case where the substance acts as an ideal gas for the same temperature-volume parameters) for simple liquids from experimental acoustic and thermophysical data along a coexistence line for both liquid and vapour phases. It has been determined that this quantity has a universal...... hiện toàn bộ
Competition in the carrier capture between InGaAs/AlGaAs quantum dots and deep point defects
The European Physical Journal B - Tập 28 - Trang 157-161 - 2002
P. Altieri, M. Gurioli, S. Sanguinetti, E. Grilli, M. Guzzi, P. Frigeri, S. Franchi
The presence of an extrinsic photoluminescence (PL) band peaked at 1.356 eV at low temperature is observed, on a large number of self-assembled InAs and In0.5Ga0.5As quantum dot (QD) structures, when exciting just below the GaAs absorption edge. A detailed optical characterization allows us to attribute the 1.356 eV PL band to the radiative transition between the conduction band and the doubly ion...... hiện toàn bộ
Symmetrical field effect and slow electron relaxation in granular aluminium
The European Physical Journal B - Tập 32 Số 3 - Trang 275-278 - 2003
T. Grenet
Front propagation in chaotic and noisy reaction-diffusion systems: a discrete-time map approach
The European Physical Journal B - Tập 25 - Trang 333-343 - 2002
A. Torcini, A. Vulpiani, A. Rocco
We study the front propagation in reaction-diffusion systems whose reaction dynamics exhibits an unstable fixed point and chaotic or noisy behaviour. We have examined the influence of chaos and noise on the front propagation speed and on the wandering of the front around its average position. Assuming that the reaction term acts periodically in an impulsive way, the dynamical evolution of the syst...... hiện toàn bộ
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