157 research outputs found
Macroscopic Phase Coherence of Defective Vortex Lattices in Two Dimensions
The superfluid density is calculated theoretically for incompressible vortex
lattices in two dimensions that have isolated dislocations quenched in by a
random arrangement of pinned vortices. The latter are assumed to be sparse and
to be fixed to material defects. It is shown that the pinned vortices act to
confine a single dislocation of the vortex lattice along its glide plane.
Plastic creep of the two-dimensional vortex lattice is thereby impeded, and
macroscopic phase coherence results at low temperature in the limit of a dilute
concentration of quenched-in dislocations.Comment: 18 pages, 1 figure, 1 table, new title, submitted to Physical Review
Effect of Uncertainty in Processing Parameters on the Microstructure of Single Melt Tracks Formed by Selective Laser Melting
Depinning Transition of a Two Dimensional Vortex Lattice in a Commensurate Periodic Potential
We use Monte Carlo simulations of the 2D one component Coulomb gas on a
triangular lattice, to study the depinning transition of a 2D vortex lattice in
a commensurate periodic potential. A detailed finite size scaling analysis
indicates this transition to be first order. No significant changes in behavior
were found as vortex density was varied over a wide range.Comment: 5 pages, 8 figures. Revised discussion of correlation length exponent
using a more accurate finite size scaling analysis. New figs. 5 and 6. Old
figs. 6 and 7 now figs. 7 and
Integrated Modelling of Crack Propagation in AA2024-T3 FSW Butt Joints Considering The Residual Stresses from the Manufacturing Process
Modelling of composition and stress profiles in low temperature surface engineered stainless steel
Modelling the evolution of composition-and stress-depth profiles in austenitic stainless steels during low-temperature nitriding:Paper
An analytical solution describing the shape of a yield stress material subjected to an overpressure
Modeling the mechanical deformation of nickel foils for nanoimprint lithography on double-curved surfaces
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