Capacity of graphite's layered structure to suppress the sputtering yield: A molecular dynamics study

Effect of Sample Thickness on Carbon Ejection from Ultrathin Graphite Bombarded by keV C60

“…2a. It has been proved that the layered structure of graphite is mostly responsible for a lack of sputtering [6]. Computer simulations indicate that the energy transfer in graphite is highly anisotropic and occurs predominantly along graphene sheets.…”

“…Theoretical studies of graphite sputtering by keV C 60 projectiles show that the sputtering yield is unexpectedly low [5,6]. Krantzman et al attribute this fact to a low atomic density of graphite [5] while the effect of layered structure of graphite was emphasised by Tian et al [6]. It has been also shown that the membrane-like structure of graphite can be made to vibrate as a result of a low-energy cluster impact [4,9].…”

“…Moreover, many of these studies concentrate on defect creation in the bombarded system rather than on material ejection. Theoretical studies of graphite sputtering by keV C 60 projectiles show that the sputtering yield is unexpectedly low [5,6]. Krantzman et al attribute this fact to a low atomic density of graphite [5] while the effect of layered structure of graphite was emphasised by Tian et al [6].…”

“…Most of the existing simulations are performed on thick graphite [5][6][7][8][9][10][11]. Moreover, many of these studies concentrate on defect creation in the bombarded system rather than on material ejection.…”

Effect of substrate thickness on ejection of phenylalanine molecules adsorbed on free-standing graphene bombarded by 10 keV C60

“…There are several simulations performed on C 60 bombardment of graphene and graphite [4,[6][7][8][9][10][11][12][13]. However, most of these studies concentrate on defect creation in the bombarded system rather than on material ejection.…”