Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Filip Krzyżewski"'
Publikováno v:
Crystal Growth & Design. 20:7246-7259
Bunching of steps at the surface of growing and sublimating crystals can be induced by both directions of the electromigration force acting on the adatoms: step up and step down. The processes happ...
Autor:
P. Wolny, Marcin Siekacz, A. Feduniewicz-Żmuda, Caroline Chèze, Czeslaw Skierbiszewski, Henryk Turski, Grzegorz Muziol, Filip Krzyżewski, Debdeep Jena, Krzesimir Nowakowski-Szukudlarek, Huili Xing, Magdalena A. Załuska-Kotur
Publikováno v:
Applied Surface Science. 484:771-780
The stability of the Nitrogen-polar (000-1) surface of single-crystal bulk GaN substrates is studied for layers grown by plasma-assisted molecular beam epitaxy (PAMBE) in Nitrogen-rich conditions at 730 °C. It is shown that smooth GaN layers with pa
Publikováno v:
Crystal Growth & Design. 19:821-831
We propose an integrated modeling approach to the fundamental problem of vicinal crystal surfaces destabilized by step-down (SD) and step-up (SU) currents with focus on both the initial and the int...
Autor:
Marta Sawicka, Magdalena A. Załuska-Kotur, Henryk Turski, Filip Krzyżewski, Czeslaw Skierbiszewski
Publikováno v:
Journal of Crystal Growth. 457:38-45
The evolution of surface morphology during the growth of N-polar ( 000 1 ¯ ) GaN under N-rich conditions is studied by kinetic Monte Carlo (kMC) simulations for two substrates miscuts 2° and 4°. The results are compared with experimentally observe
Publikováno v:
Journal of Crystal Growth. 457:80-84
Height and type of Schwoebel barriers (direct or inverse) decides about the character of the surface instability. Different surface morphologies are presented. Step bunches, double steps, meanders, mounds and irregular patterns emerge at the surface
Autor:
Cormac Ó Coileáin, V. Usov, Magdalena A. Załuska-Kotur, Igor V. Shvets, Alexander N. Chaika, Valery N. Semenov, A. Krasteva, K. E. Siewierska, Filip Krzyżewski, O. Lübben, Sergey A. Krasnikov, Olzat Toktarbaiuly, S.I. Bozhko, Hristina Popova, Vesselin Tonchev, Barry E. Murphy, Emma Norton
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 reveal that the size scaling exponent {\gamma}, connecting the maximal slo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f0f66964ecbfb207e10c0eff60f9db1
http://arxiv.org/abs/1712.05041
http://arxiv.org/abs/1712.05041
Autor:
Filip Krzyżewski, Michał Leszczyński, Robert Czernecki, Magdalena A. Załuska-Kotur, Stanisław Krukowski
Publikováno v:
Crystal Growth & Design. 13:1006-1013
Monte Carlo (MC) data, obtained during simulation of an annealed surface GaN(0001), are compared with those obtained from experiment. It is shown that simulations reproduce the majority of patterns observed in experiments provided that a suitable sel
Publikováno v:
Journal of Crystal Growth. 343:138-144
Step meandering during the growth of gallium nitride crystal is studied on using kinetic Monte Carlo method. Cause of instability is identified to be the particle advection caused by the step flow. Growth process is conducted in N-rich conditions and
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, initially the steps are regularly distributed. Another array keeps the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97dc291b431f14ccf37c8dd3e2588e63
http://arxiv.org/abs/1511.04392
http://arxiv.org/abs/1511.04392
Autor:
Filip Krzyżewski
Publikováno v:
Journal of Crystal Growth. 401:511-513
Kinetic Monte Carlo wurtzite structure crystals of 4H-SiC simulations were performed. The first stage of system evolution was the sublimation process which ended when bunched structure appeared. Then the crystal growth started. Vanishing of bunched s