20 citations · 75 across the 5 of their papers we have counts for
4 papers · 1 filter
First-principles calculations of step formation energies and step interactions on TiN(001)
C. V. Ciobanu, D. T. Tambe, V. B. Shenoy
We study the formation energies and repulsive interactions of monatomic steps on the TiN(001) surface, using density functional total-energy calculations. The calculated formation…
Influence of step-edge barriers on the morphological relaxation of nanoscale ripples on crystal surfaces
V. B. Shenoy, A. Ramasubramaniam, H. Ramanarayan +3
We show that the decay of sinusoidal ripples on crystal surfaces, where mass transport is limited by the attachment and detachment of atoms at the step-edges, is remarkably differe…
On the energetic origin of self-limiting trenches formed around Ge/Si quantum dots
D. T. Tambe, V. B. Shenoy
At high growth temperatures, the misfit strain at the boundary of Ge quantum dots on Si(001) is relieved by formation of trenches around the base of the islands. The depth of the t…
Comparative study of dimer vacancies and dimer-vacancy lines on Si(001) and Ge(001)
C. V. Ciobanu, D. T. Tambe, V. B. Shenoy
Although the clean Si(001) and Ge(001) surfaces are very similar, experiments to date have shown that dimer-vacancy (DV) defects self-organize into vacancy lines (VLs) on Si(001),…