Results 11 to 20 of about 43,124 (180)
Modeling contact formation between atomic-sized gold tips via molecular dynamics [PDF]
, 2015 The formation and rupture of atomic-sized contacts is modelled by means of molecular dynamics simulations. Such nano-contacts are realized in scanning tunnelling microscope and mechanically controlled break junction experiments.
Caturla, M. J. +5 more
core +3 more sources
Photonics, 2022 We study the output of a semiconductor laser with optical feedback operated in the low-frequency fluctuations (LFFs) regime and subject to weak sinusoidal current modulation.
Jordi Tiana-Alsina, Cristina Masoller
doaj +1 more source
One-loop mass shift formula for kinks and self-dual vortices [PDF]
, 2005 A formula is derived that allows us to compute one-loop mass shifts for kinks and self-dual Abrikosov-Nielsen-Olesen vortices. The procedure is based in canonical quantization and heat kernel/zeta function regularization methods.Comment: LaTex file, 8 ...
Fuertes, W. Garcia +3 more
core +2 more sources
The influence of magnetic field geometry on magnetars X-ray spectra [PDF]
, 2011 Nowadays, the analysis of the X-ray spectra of magnetically powered neutron stars or magnetars is one of the most valuable tools to gain insight into the physical processes occurring in their interiors and magnetospheres.
Beloborodov A M +12 more
core +3 more sources
, 2001 The mechanism underlying the soliton ratchet, both in absence and in presence of noise, is investigated. We show the existence of an asymmetric internal mode on the soliton profile which couples, trough the damping in the system, to the soliton ...
A. Ajdari +23 more
core +2 more sources
Current-driven skyrmion motion along disordered magnetic tracks
AIP Advances, 2017 The motion of skyrmions along ferromagnetic strips driven by current pulses is theoretically analyzed by means of micromagnetic simulations. Analytical expressions describing the skyrmion dynamics during and after the current pulse are obtained from an ...
Victor Raposo +2 more
doaj +1 more source
Quantum calculation of vortices in the inner crust of neutron stars [PDF]
, 2006 We study, within a quantum mechanical framework based on self-consistent mean field theory, the interaction between a vortex and a nucleus immersed in a sea of free neutrons, a scenario representative of the inner crust of neutron stars.
E. Vigezzi +5 more
core +2 more sources
Influence of particle size in silo discharge
EPJ Web of Conferences, 2017 Recently Janda et al. [Phys. Rev. Lett. 108, 248001 (2012)] reported an experimental study where it was measured the velocity and volume fraction fields of 1 mm diameter stainless steel beads in the exit of a two-dimensional silo.
Gella Diego, Maza Diego, Zuriguel Iker
doaj +1 more source
Power Corrections to Perturbative QCD and OPE in Gluon Green Functions [PDF]
, 2001 We show that QCD Green functions in Landau Gauge exhibit sizable $O(1/\mu^2)$ corrections to the expected perturbative behavior at energies as high as 10 GeV. We argue that these are due to a $$-condensate which does not vanish in Landau gauge.Comment: 3
A. Le Yaouanc +18 more
core +4 more sources
Micromagnetic analysis of geometrically controlled current-driven magnetization switching
AIP Advances, 2017 The magnetization dynamics induced by current pulses in a pair of two “S-shaped” ferromagnetic elements, each one consisting on two oppositely tilted tapered spikes at the ends of a straight section, is theoretically studied by means of micromagnetic ...
O. Alejos +5 more
doaj +1 more source