31 citations · 31 across the 1 of their papers we have counts for
5 papers
Correlations in nano-scale step fluctuations: comparison of simulation and experiments
F. Szalma, D. B. Dougherty, M. Degawa +3
We analyze correlations in step-edge fluctuations using the Bortz-Kalos-Lebowitz kinetic Monte Carlo algorithm, with a 2-parameter expression for energy barriers, and compare with…
Spiral Evolution in a Confined Geometry
Madhav Ranganathan, D. B. Dougherty, W. G. Cullen +3
Supported nanoscale lead crystallites with a step emerging from a non-centered screw dislocation on the circular top facet were prepared by rapid cooling from just above the meltin…
Distinguishing step relaxation mechanisms via pair correlation functions
D. B. Dougherty, I. Lyubinetsky, T. L. Einstein +1
Theoretical predictions of coupled step motion are tested by direct STM measurement of the fluctuations of near-neighbor pairs of steps on Si(111)-root3 x root3 R30 - Al at 970K. T…
Correlation Time for Step Structural Fluctuations
O. Bondarchuk, D. B. Dougherty, M. Degawa +4
Time dependent STM has been used to evaluate step fluctuations as a function of temperature (300-450 K) on Ag(111) films grown on mica. The temporal correlation function scales as…
Infinite family of persistence exponents for interface fluctuations
M. Constantin, S. Das Sarma, C. Dasgupta +3
We show experimentally and theoretically that the persistence of large deviations in equilibrium step fluctuations is characterized by an infinite family of independent exponents.…