Search Results - "Wilhelm, R.A."

Graphical user interface for SDTrimSP to simulate sputtering, ion implantation and the dynamic effects of ion irradiation by Szabo, P.S., Weichselbaum, D., Biber, H., Cupak, C., Mutzke, A., Wilhelm, R.A., Aumayr, F.

“…SDTrimSP is a popular simulation program to compute several effects of the interaction between an impinging ion and a solid, such as ion implantation ranges,…”
Get full text

Tuning the antiferromagnetic to ferromagnetic phase transition in FeRh thin films by means of low-energy/low fluence ion irradiation by Heidarian, A., Bali, R., Grenzer, J., Wilhelm, R.A., Heller, R., Yildirim, O., Lindner, J., Potzger, K.

“…Ion irradiation induced modifications of the thermomagnetic properties of equiatomic FeRh thin films have been investigated. The application of 20keV Ne+ ions…”
Get full text

Surface nanostructuring of LiNbO3 by high-density electronic excitations by El-Said, A.S., Wilhelm, R.A., Facsko, S., Trautmann, C.

“…Lithium niobate (LiNbO3) single crystals were irradiated with high energy gold ions (0.5–2.2GeV) at the UNILAC (GSI) and with 150-keV highly charged xenon ions…”
Get full text

Creation of surface nanostructures in Al2O3 by slow highly charged ions by El-Said, A.S., Wilhelm, R.A., Heller, R., Akhmadaliev, Sh, Facsko, S.

“…Al2O3 single crystals were irradiated with slow highly charged Xe ions of various charge states from an EBIT (Electron Beam Ion Trap) source at the Dresden two…”
Get full text

Surface nanostructuring of SrTiO3 single crystals by slow highly charged ions and swift heavy ions by El-Said, A.S., Wilhelm, R.A., Heller, R., Facsko, S., Trautmann, C., Aumayr, F.

“…Single crystals of strontium titanate have been irradiated with both slow highly charged Xe ions extracted from an Electron Beam Ion Trap and swift heavy Xe…”
Get full text

Sputter yields of rough surfaces: Importance of the mean surface inclination angle from nano- to microscopic rough regimes by Cupak, C., Szabo, P.S., Biber, H., Stadlmayr, R., Grave, C., Fellinger, M., Brötzner, J., Wilhelm, R.A., Möller, W., Mutzke, A., Moro, M.V., Aumayr, F.

“…The roughness of a surface is known to have a strong influence on the sputtering process. Commonly used 1D Monte Carlo codes for calculating sputter yields…”
Get full text

On the question whether surface roughness can explain the absence of a prominent single-collision peak in keV heavy-ion scattering off a polycrystalline Ru surface by Assink, L., Brötzner, J., Cupak, C., Salverda, M., Jonkman, H.T., Versolato, O.O., Wilhelm, R.A., Hoekstra, R.

“…In a joint experimental and modeling effort, we have studied 15 keV Ar2+, Kr2+, and Xe2+ projectiles scattering off a polycrystalline Ru surface to assess the…”
Get full text

Creation of surface nanostructures in lanthanum fluoride single crystals by irradiation with slow highly charged ions by El-Said, A.S., Wilhelm, R.A., Heller, R., Facsko, S.

“…Slow highly charged ions (HCI) were utilized successfully for the formation of various nanostructures in the surfaces of different materials. The creation…”
Get full text

Sputtering of nanostructured tungsten and comparison to modelling with TRI3DYN by Stadlmayr, R., Szabo, P.S., Mayer, D., Cupak, C., Dittmar, T., Bischoff, L., Möller, S., Rasiński, M., Wilhelm, R.A., Möller, W., Aumayr, F.

“…He-induced nanostructured tungsten (so-called W-fuzz) was bombarded with Ar ions under 60° and the dynamic erosion behaviour was experimentally investigated…”
Get full text

On the missing single collision peak in low energy heavy ion scattering by Wilhelm, R.A., Deuzeman, M.J., Rai, S., Husinsky, W., Szabo, P.S., Biber, H., Stadlmayr, R., Cupak, C., Hundsbichler, J., Lemell, C., Möller, W., Mutzke, A., Hobler, G., Versolato, O.O., Aumayr, F., Hoekstra, R.

“…We present experimental and simulation data on the oblique angle scattering of heavy Sn ions at 14keV energy from a Mo surface. The simulations are performed…”
Get full text

The role of radiative de-excitation in the neutralization process of highly charged ions interacting with a single layer of graphene by Schwestka, J., Wilhelm, R.A., Gruber, E., Heller, R., Kozubek, R., Schleberger, M., Facsko, S., Aumayr, F.

“…X-ray emission of slow (<1 a.u.) highly charged Argon and Xenon ions is measured for transmission through a freestanding single layer of graphene. To…”
Get full text

A study of the structural properties of GaN implanted by various rare-earth ions by Mackova, A., Malinský, P., Sofer, Z., Šimek, P., Sedmidubský, D., Mikulics, M., Wilhelm, R.A.

“…GaN layers with 〈0001〉 crystallographic orientation, grown by low-pressure metal-organic vapour-phase epitaxy (MOVPE) on c-plane sapphire substrates, were…”
Get full text

Modifications of gallium phosphide single crystals using slow highly charged ions and swift heavy ions by El-Said, A.S., Wilhelm, R.A., Heller, R., Akhmadaliev, Sh, Schumann, E., Sorokin, M., Facsko, S., Trautmann, C.

“…GaP single crystals were irradiated with slow highly charged ions (HCI) using 114keV 129Xe(33–40)+ and with various swift heavy ions (SHI) of 30MeV I9+ and…”
Get full text

Surface modifications of BaF2 and CaF2 single crystals by slow highly charged ions by EL-SAID, A. S, HELLER, R, WILHELM, R. A, FACSKO, S, AUMAYR, F

“…Ion-irradiation of solid surfaces is considered as one of the promising and powerful techniques for material nanostructuring. Recently, slow highly charged…”
Get full text

Polarity dependence of Mn incorporation in (Ga,Mn)N superlattices by Tropf, L., Kunert, G., Jakieła, R., Wilhelm, R.A., Figge, S., Grenzer, J., Hommel, D.

“…In the context of recent efforts to combine high Mn concentrations in (Ga,Mn)N with a pronounced p-type carrier density, (Ga,Mn)N/GaN:Mg-superlattices have…”
Get full text

A setup for transmission measurements of low energy multiply charged ions through free-standing few atomic layer films by Smejkal, V., Gruber, E., Wilhelm, R.A., Brandl, L., Heller, R., Facsko, S., Aumayr, F.

“…We report the design and testing of a setup for transmission measurements of multiply charged ions through free-standing films with a thickness of a few atomic…”
Get full text

Erbium-ion implantation into various crystallographic cuts of Al2O3 by Nekvindova, P., Mackova, A., Malinsky, P., Cajzl, J., Svecova, B., Oswald, J., Wilhelm, R.A.

“…This paper reports on the importance of crystallographic cuts with a different orientation on the luminescent properties and structural changes of Al2O3…”
Get full text

A comparison of the structural changes and optical properties of LiNbO3, Al2O3 and ZnO after Er+ ion implantation by Mackova, A., Malinsky, P., Pupikova, H., Nekvindova, P., Cajzl, J., Svecova, B., Oswald, J., Wilhelm, R.A., Kolitsch, A.

“…This paper reports on the structural as well as compositional changes of LiNbO3, Al2O3 and ZnO crystals, implanted with Er+ ions at 190keV a with fluence of…”
Get full text

A study of the structural and magnetic properties of ZnO implanted by Gd ions by Macková, A., Malinský, P., Sofer, Z., Šimek, P., Sedmidubský, D., Mikulics, M., Wilhelm, R.A.

“…The structural and magnetic properties of ZnO (0001) single crystals implanted with 200keV Gd ions up to a fluence of 5×1015cm−2 and subsequently annealed at…”
Get full text

Novel aspects on the irradiation of HOPG surfaces with slow highly charged ions by Ritter, R., Shen, Q., Wilhelm, R.A., Heller, R., Ginzel, R., Crespo López-Urrutia, J.R., Facsko, S., Teichert, C., Aumayr, F.

“…As a continuation of our previous work, we present new results regarding the interaction of slow highly charged ions with HOPG. Lateral atomic force microscopy…”
Get full text