Trapping dynamics of xenon on Pt(111)

Adsorption and accommodation of Xe on Pt{111}

“…This measured coverage was in all cases in good agreement with the calculated dose assuming unity sticking coefficient. This high value of the sticking coefficient is consistent with the trends recorded as a 6 In Fig. 1 we present an STM image recorded after dosing our Pt{ 111) crystal to -0.01 ML of…”

Molecular dynamics simulations of adsorption and diffusion of Xe on bare and Xe covered Pt(111)

“…But the trend is described very well: Our adsorption probabilities are found to scale with Ei COS'.~(&) (Fig. 2), in contrast with the experiments of Arumainayagam et al [4], where scaling with Ei cos (@i ) is reported (Ei is the incidence energy and 8i is the angle of incidence), but in accordance with the experiments of Rettner et al [2] who reported scaling with Ei COS'-~ (6i) too. This is in accordance with All simulations in this section were carried out at normal incidence.…”

“…A lot of attention has been paid to the adsorption of Xe on bare Pt ( 1 1 1 ), both experimentally by means of molecular beam experiments [ l-71 and theoretically by means of computer simulations [ 4,6,7]. However, for adsorption behaviour on Pt ( 111) surfaces with nonzero Xe coverages, only one experimental study was published thus far [ 81, and no theoretical study at all.…”

Monte Carlo simulations of temperature-programmed and isothermal desorption from single-crystal surfaces

“…The initial rise in 8(1 ) (9) is attributed to the formation of energetically favorable islands in which molecules are arranged in .V3x.V3 R30° domains, whereas the decrease in 8(1)(9) at high coverage is attributed to crowding effects. (1 )(0) versus Er cos 9i for Xe adsorption on Pt(111) (46]. Er is the incident kinetic energy and 9i is the incident angle measured from the surface normal.…”

“…This increase arises as a consequence of higher coverages and therefore stronger lateral interactions between the adsorbed CO molecules. versus Er cos 9i for Xe adsorption on Pt(111) [46]. Er is the incident kinetic energy and 9i is the incident [62,63] and predicted (e) [61] variation in S<1) (9) versus cov~rage for N2 adsorption on Ru(001 ) Monte Carlo simulation of TPD spectra [133].…”