Electronic interaction of individual slow highly charged ions withTiO2(110)

Coincidence measurements of secondary ions and scattered ions in collision between slow Ar6+and a GaN(0001) surface

“…There have been many reports on nanostructure formation as well as efficient secondary particle emission, which make it possible to realize the surface-sensitive chemical analysis. For example, some papers described sputtering yields almost independent of collision energy [1]. Nano-dot volume as a function of the collision energy showed similar energy dependence [2].…”

“…Figure 5(b) is almost the same as the usual SIMS spectrum, since T 1 is much longer than T 2 . Very efficient proton emission is one of the most important characteristics of desorption and ionization due to electron capture by HCIs [1,[4][5][6][7]. Weak N + , Ga + and GaN + peaks originating from substrate atoms were also observed, together with some hydrocarbon-ion peaks originating from contaminants.…”

Guiding and blocking of highly charged ions through a single glass capillary

“…When a highly charged ion interacts with a solid surface, it releases its huge potential energy on a small area of a few tens of square nanometers in a short of time 10 fs. As a result, it causes remarkable effects, such as a high yield of secondary particle emission [2][3][4], and formation of hillock or crater nanostructures whose morphology and sizes strongly depend on the ion charge and the materials to be exposed [5][6][7][8][9]. The mechanism of ion guiding inside an insulating capillary is explained tentatively as self-organized formation of patches of charged areas, which reflect succeeding ions and just allow them to pass through [10,11].…”

Phase Diagram for NanostructuringCaF2Surfaces by Slow Highly Charged Ions

“…Various types of surface nanostructures such as nano-sized hillocks, pits or craters have so far been observed after impact of individual HCI on different materials [5,[16][17][18]. Their topography, appearance, and stability seem to depend sensitively on the material properties as well as on the potential energy, charge state, and kinetic energy of the incident ion (for a recent review see [19]).…”