Física de la Matèria Condensada: Enviaments recents
Ara mostrant els elements 321-340 de 1286
Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
We present a theoretical investigation of shot-noise suppression due to long-range Coulomb interaction in nondegenerate diffusive conductors. Calculations make use of an ensemble Monte Carlo simulator selfconsistently ...
Tailoring barocaloric and magnetocaloric properties in low-hysteresis magnetic shape memory alloys
We report on the barocaloric and magnetocaloric effects in a series of low-hysteresis Ni-Mn-In magnetic shape memory alloys. We show that the behaviour exhibited by several quantities that characterise these caloric ef- ...
Electron-number statistics and shot-noise suppression by Coulomb correlation in nondegenerate ballistic transport
Within a Monte Carlo simulation, we investigate the statistical properties of an electron flow injected with a Poissonian distribution and transmitted under ballistic regime in the presence of long-range Coulomb interaction. ...
Model for probing membrane-cortex adhesion by micropipette aspirations and fluctuation spectroscopy
We propose a model for membrane-cortex adhesion which couples membrane deformations, hydrodynamics and kinetics of membrane-cortex ligands. In its simplest form, the model gives explicit predictions for the critical pressure ...
Spin wave excitation patterns generated by spin torque oscillators
Spin torque nano oscillators (STNO) are nano-scale devices that can convert a direct current into short wave-length spin-wave excitations in a ferromagnetic layer. We show that arrays of STNO can be used to create directional ...
Caloric response of Fe49Rh51 subjected to uniaxial load and magnetic field.
We have used differential scanning calorimetry and thermometry techniques under applied magnetic field and compressive uniaxial stress to determine isothermal entropy and adiabatic temperature changes that quantify the ...
Fabrication and structural characterization of highly ordered sub-100-nm planar magnetic nanodot arrays over 1 cm2 coverage area
Porous alumina masks are fabricated by anodization of aluminum films grown on both semiconducting and insulating substrates. For these self-assembled alumina masks, pore diameters and periodicities within the ranges of ...
Nucleation rates in flat and curved space
Nucleation rates for tunneling processes in Minkowski and de Sitter space are investigated, taking into account one loop prefactors. In particular, we consider the creation of membranes by an antisymmetric tensor field, ...
Editorial of virtual special issue Frontiers in Water Biophysics 2017
The present virtual special issue (VSI) of the Journal of Molecular Liquids contains the proceedings of the 4th Conference on Frontiers in Water Biophysics (FWB2017) held in Erice, Sicily (Italy) from 23 to 27 May 2017 at ...
Self-dynamic structure factor of dense liquids: Theory and simulation
The self-intermediate dynamic structure factor Fs(k,t) of liquid lithium near the melting temperature is calculated by molecular dynamics. The results are compared with the predictions of several theoretical approaches, ...
Metastable liquid-liquid phase transition in a single-component system with only one crystal phase and no density anomaly
We investigate the phase behavior of a single-component system in three dimensions with spherically-symmetric, pairwise-additive, soft-core interactions with an attractive well at a long distance, a repulsive soft-core ...
Homogeneous Crystal Nucleation Near a Metastable Fluid-Fluid Phase Transition
Several scenarios exist for the protein crystallization and aggregation in solutions near a metastable fluid-fluid phase separation below the solubility line. Based on computations, it was proposed that the fluid-fluid ...
Increasing power-law range in avalanche amplitude and energy distributions
Power-law-type probability density functions spanning several orders of magnitude are found for different avalanche properties. We propose a methodology to overcome empirical constraints that limit the range of truncated ...
Phase transition in the Ising ferromagnetic model with fixed spins
The ferromagnetic Ising spin-(1/2 model in a finite simple-cubic lattice Λ is studied by Monte Carlo methods when two subsets of the lattice sites in Λ, say Ω + and Ω − , contain (the same number of) spins fixed ...
Corrigendum: Generation and stability of dynamical skyrmions and droplet solitons (2018 Nanotechnology 29 325302)
We have updated figure 3. The labels of the y axis corresponding to the initial angle of magnetization given in degrees should go from 0° to 5°. The condition of M being out of the film plane is given by an angle of 0°.
Kinetic equations for difussion in the presence of entropic barriers
We use the mesoscopic nonequilibrium thermodynamics theory to derive the general kinetic equation of a system in the presence of potential barriers. The result is applied to a description of the evolution of systems whose ...
Divergent signal-to-noise ratio and stochastic resonance in monostable systems
We present a class of systems for which the signal-to-noise ratio always increases when increasing the noise and diverges at infinite noise level. This new phenomenon is a direct consequence of the existence of a scaling ...
Chaotic systems with a null conditional Lyapunov exponent under nonlinear driving.
Control of a chaotic system by homogeneous nonlinear driving, when a conditional Lyapunov exponent is zero, may give rise to special and interesting synchronizationlike behaviors in which the response evolves in perfect ...
Vidres de spins i xarxes neuronals
Un deis interessos més gran de la física és l'estudi de les propietats dels sistemes macroscòpics amb molts graus de llibertat. D'aquesta branca de la física s'encarrega la mecànica estadística, 1'objectiu de la qual és ...
Extreme times for volatility processes
Extreme times techniques, generally applied to nonequilibrium statistical mechanical processes, are also useful for a better understanding of financial markets. We present a detailed study on the mean first-passage time ...
