"8"^^ . "Diffusion processes, which take place at surfaces of solids, are predominantly determined by a) mutual interactions among adsorbed particles and b) interactions between a substrate and adsorbed particles. These interactions may result in the appearance of different structural phases at a corresponding coverage. Measured concentration profiles exhibit a complex behaviour with a number of terraces and steps. A determined diffusion coefficient reveals local extremes that have been explained in terms of a phase transition in the adsorbed layer. However, the direct evolution of ordered phases has not been observed yet. Detailed mechanisms of the phase transitions are not well cleared up as well."@en . "GA202/99/P001" . "8"^^ . . . . . . . "http://www.isvav.cz/projectDetail.do?rowId=GA202/99/P001"^^ . . . . . "0"^^ . "Experiment\u00E1ln\u00ED studium teplotn\u00ED a koncentra\u010Dn\u00ED z\u00E1vislosti dif\u00FAzn\u00EDho koeficientu na vybran\u00FDch dvourozm\u011Brn\u00FDch syst\u00E9mech kov/polovodi\u010D" . "0"^^ . . "Experimental study of the temperature and concentration dependence of diffusion coefficient in chosen two-dimensional metal/semiconductor systems"@en . "Pro pochopen\u00ED dif\u00FAze jsou rozhoduj\u00EDc\u00ED jevy prob\u00EDhaj\u00EDc\u00ED na mikroskopick\u00E9 \u00FArovni v d\u016Fsledku silov\u00FDch interakc\u00ED mezi \u010D\u00E1sticemi adsorb\u00E1tu navz\u00E1jem na stran\u011B jedn\u00E9, mezi \u010D\u00E1sticemi adsorb\u00E1tu a povrchem substr\u00E1tu na stran\u011B druh\u00E9 a vz\u00E1jemn\u00E1 souhra obou proces\u016F. V\u00FDsledkem t\u011Bchto interakc\u00ED m\u016F\u017Ee b\u00FDt tvorba r\u016Fzn\u00FDch strukturn\u00EDch f\u00E1z\u00ED adsorb\u00E1tu p\u0159i odpov\u00EDdaj\u00EDc\u00EDm pokryt\u00ED. Zm\u011B\u0159en\u00E9 koncentra\u010Dn\u00ED profily tak jsou charakteristick\u00E9 slo\u017Eit\u00FDm pr\u016Fb\u011Bhem s \u0159adou teras a schod\u016F. Vyhodnocen\u00FD dif\u00FAzn\u00ED koeficient vykazuje lok\u00E1ln\u00ED extr\u00E9my, kter\u00E9 se vysv\u011Btluj\u00ED f\u00E1zov\u00FDmi p\u0159echody ve struktu\u0159e adsorbovan\u00FDch atom\u016F. P\u0159\u00EDm\u00E9 \u0161\u00ED\u0159en\u00ED uspo\u0159\u00E1dan\u00FDch f\u00E1z\u00ED dosud nebylo pozorov\u00E1no, detailn\u00ED mechanismy f\u00E1zov\u00FDch p\u0159echod\u016F rovn\u011B\u017E nejsou zn\u00E1my. C\u00EDlem pr\u00E1ce, kter\u00E1 se zam\u011B\u0159\u00ED na syst\u00E9my kov/polovodi\u010D, budstudium teplotn\u00ED a koncentra\u010Dn\u00ED z\u00E1vislosti dynamick\u00FDch proces\u016F spojen\u00FDch s p\u0159\u00EDtomnost\u00ED r\u016Fzn\u00FDch strukturn\u00EDch f\u00E1z\u00ED na povrchu a dynamiku f\u00E1zov\u00FDch p\u0159echod\u016F. Bude provedeno p\u0159\u00EDm\u00E9 m\u011B\u0159en\u00ED \u0161\u00ED\u0159en\u00ED uspo\u0159\u00E1dan\u00FDch f\u00E1z\u00ED v syst\u00E9mu Au/Si(111) pomoc\u00ED fotoelektronov\u00E9ho e" . "1"^^ . "P\u0159es kr\u00E1tkou dobu \u0159e\u0161en\u00ED bylo dosa\u017Eeno zaj\u00EDmav\u00FDch v\u00FDsledk\u016F, kter\u00E9 byly publikov\u00E1ny v renomovan\u00FDch mezin\u00E1rodn\u00EDch \u010Dasopisech. V\u00FDstupem je rukopis publikace a \u00FA\u010Dast na konferenci. Prost\u0159edky byly \u010Derp\u00E1ny s mal\u00FDmi odchylkami mezi jednotliv\u00FDmi polo\u017Ekami, kter"@cs . . . .