24 citations · 80 across the 7 of their papers we have counts for
7 papers
Unstable dynamics of model vicinal crystal surfaces: Initial and intermediate stages
Filip Krzyżewski, Magdalena A. Załuska-Kotur, Anna Krasteva +2
We approach the old-standing problem of vicinal crystal surfaces destabilized by step-down and step step-up currents from a unified modelling viewpoint with focus on both the initi…
Excitation transfer from Second to First resonance line of Potassium observed in hot atomic vapor
C. Andreeva, A. Krasteva, A. Markovski +4
We present experimental investigation on the fluorescence profiles observed by excitation of the hyperfine transitions of the second resonance line of potassium with a wavelength o…
Step bunching with both directions of the current: Vicinal W(110) surfaces versus atomistic scale model
Olzat Toktarbaiuly, Victor Usov, Cormac Ó Coileáin +14
We report for the first time the observation of bunching of monoatomic steps on vicinal W(110) surfaces induced by step up or step down currents across the steps. Measurements reve…
Step bunching and macrostep formation in 1D atomistic scale model of unstable vicinal crystal growth
F. Krzyżewski, M. Załuska-Kotur, A. Krasteva +2
We devise a new 1D atomistic scale model of vicinal growth based on Cellular Automaton. In it the step motion is realized by executing the automaton rule prescribing how adatoms in…
Time Scaling Relations for Step Bunches from Models with Step-Step Attractions (B1-Type Models)
Anna Krasteva, Noriko Akutsu, Vesselin Tonchev
The step bunching instability is studied in three models of step motion defined in terms of ordinary differential equations (ODE). The source of instability in these models is step…
Unstable vicinal crystal growth from cellular automata
Anna Krasteva, Hristina Popova, Filip Krzyzewski +2
In order to study the unstable step motion on vicinal crystal surfaces we devise vicinal Cellular Automata. Each cell from the colony has value equal to its height in the vicinal,…
Sub-natural -type Resonance in Cesium Atomic Vapor: splitting in magnetic fields
D. Slavov, A. Sargsyan, D. Sarkisyan +4
The sub-natural-width -type resonance in Λ-system, on the line of Cs atoms is studied for the first time in the presence of a buffer gas (neon) and the radiations of two c…