Ion-surface-interaction
- Selected reprints

Ion-surface-interaction

We study fundamental ion - surface interactions, in particular the impact of slow highly charged ions on surfaces leading to the formation of exotic "hollow atoms". The use of highly charged ions as a tool for controlled surface modification via “potential sputtering” are being investigated in view of possible practical applications (e.g. nano-structuring of insulator surfaces).

Interaction of Highly Charged Ions with graphene Read more…
Interaction of Highly Charged Ions with other 2D materials Read more…
Atomic-Scale Carving of Nanopores into a van der Waals Heterostructure with Slow Highly Charged Ions Read more…
Deexcitation of “hollow atoms” via electron emission. Read more…
Sputtering of mercury and moon analogue minerals by solar wind ions (“space weathering”). Read more…
Creation of Nano-sized surface modifications by irradiation with slow highly charged ions. Read more…
Erosion of fusion relevant surfaces by slow ion impact. …Read more …

Selected reprints

Interaction of Highly Charged Ions with Graphene and other 2D Materials

A. Niggas, J. Schwestka, K. Balzer, D. Weichselbaum, N. Schlünzen, R. Heller, S. Creutzburg, H. Inani, M. Tripathi, C. Speckmann, N. McEvoy, T. Susi, J. Kotakoski, Z. Gan, A. George, A. Turchanin, M. Bonitz, F. Aumayr, and R. A. Wilhelm
Ion-induced surface charge dynamics in freestanding monolayers of graphene and MoS₂ probed by the emission of electrons
Physical Review Letters 129 (2022) 086802 (9 pages)

A. Niggas, S. Creutzburg, J. Schwestka, B. Wöckinger, T. Gupta, P. L. Grande, D. Eder, J. P. Marques, B. C. Bayer, F. Aumayr, R. Bennett, R. A. Wilhelm
Peeling graphite layer by layer reveals the charge exchange dynamics of ions inside a solid
Communications Physics 4 (2021) 180 (9 pages)

S. Creutzburg, M. Mergl, R. Hübner, I. Jirka, D. Erb, R. Heller, A. Niggas, P. L. Grande, F. Aumayr, R. A. Wilhelm, M. Kalbac, and S. Facsko
Fluorination of graphene leads to susceptibility for nanopore formation by highly charged ion impact
Physical Review Materials 5 (2021) 074007 (11 pages)

S. Creutzburg, A. Niggas, D. Weichselbaum, P. L. Grande, F. Aumayr, and R. A. Wilhelm
Angle-dependent charge exchange and energy loss of slow highly charged ions in freestanding graphene
Physical Review A 104 (2021) 042806 (8 pages)

J. Schwestka, H. Inani, M. Tripathi, A. Niggas, N. McEvoy, F. Libisch, F. Aumayr, J. Kotakoski, and R. A. Wilhelm
Atomic-Scale Carving of Nanopores into a van der Waals Heterostructure with Slow Highly Charged Ions
ACS Nano 14 (2020) 10536 - 10543

A. Niggas, J. Schwestka, S. Creutzburg, T. Gupta, D. Eder, B. C. Bayer, F. Aumayr, and R. A. Wilhelm
The role of contaminations in ion beam spectroscopy with freestanding 2D materials: a study on thermal treatment
The Journal of Chemical Physics 153 (2020) 014702 (7 pages)

S. Creutzburg, J. Schwestka, A. Niggas, H. Inani, M. Tripathi, A. George, R. Heller, R. Kozubek, L. Madauß, N. McEvoy, S. Facsko, J. Kotakoski, M. Schleberger, A. Turchanin, P. L. Grande, F. Aumayr, and R. A. Wilhelm
Vanishing influence of the band gap on charge exchange of slow highly charged ions in freestanding single layer MoS₂
Physical Review B 102 (2020) 045408 (8 pages)

J. Schwestka, A. Niggas, S. Creutzburg, R. Kozubek, R. Heller, M. Schleberger, R.A. Wilhelm, and F. Aumayr
Charge-exchange-driven low-energy electron splash induced by heavy ion impact on condensed matter
Journal of Physical Chemistry Letters 10 (2019) 4805 - 4811

R.A. Wilhelm, E. Gruber, J. Schwestka, R. Kozubek, T.I. Madeira, J.P. Marques, J. Kobus, A.V. Krasheninnikov, M. Schleberger, and F. Aumayr
Interatomic coulombic decay - the mechanism for rapid de-excitation of hollow atoms
Physical Review Letters 119 (2017) 103401 (6 pages) PDF

E. Gruber, R.A. Wilhelm, R. Pétuya, V. Smejkal, R. Kozubek, A. Hierzenberger, B.C. Bayer, I. Aldazabal, A.K. Kazansky, F. Libisch, A.V. Krasheninnikov, M. Schleberger, S. Facsko, A.G. Borissov, A. Arnau, and F. Aumayr
Ultrafast electronic response of graphene to a strong and localized electric field
Nature Communications 7 (2016) 13948 (7 pages) PDF

R. A. Wilhelm, E. Gruber, R. Ritter, R. Heller, A. Beyer, A. Turchanin, N. Klingner, R. Hübner, M. Stöger-Pollach, H. Vieker, G. Hlawacek, A. Gölzhäuser, S. Facsko, and F. Aumayr
Threshold and efficiency for perforation of 1 nm thick carbon nanomembranes with slow highly charged ions
2D Materials 2 (2015) 035009 (6 pages)

R.A. Wilhelm, E, Gruber, R. Ritter, R. Heller, S. Facsko, and F. Aumayr
Charge exchange and energy loss of slow highly charged ions in 1 nm thick carbon nanomembranes
Physical Review Letters 112 (2014) 153201 (5 pages) PDF

R. Ritter, R. A. Wilhelm, M. Stöger-Pollach, R. Heller, A. Mücklich, U. Werner, H. Vieker, A. Beyer, S. Facsko, A. Gölzhäuser, and F. Aumayr
Fabrication of nanopores in 1 nm thick carbon nanomembranes with slow highly charged ions
Applied Physics Letters 102 (2013) 063112 (5 pages) PDF

Sputtering of mercury and moon analogue minerals by solar wind ions ("space weathering")

P.S. Szabo, H. Biber, N. Jäggi, M. Brenner, D. Weichselbaum, A. Niggas, R. Stadlmayr, D. Primetzhofer, A. Nenning, A. Mutzke, M. Sauer, J. Fleig, A. Foelske-Schmitz, K. Mezger, H. Lammer, A. Galli, P. Wurz, and F. Aumayr
Dynamic potential sputtering of lunar analog material by solar wind ions
The Astrophysical Journal 891 (2020) 100 (12 pages)

H. Biber, P. S. Szabo, N. Jäggi, M. Wallner, R. Stadlmayr, M. V. Moro, A. Nenning, A. Mutzke, K. Mezger, H. Lammer, D. Primetzhofer, J. Fleig, A. Galli, P. Wurz, and F. Aumayr
Solar wind Helium ion interaction with Mg and Fe rich pyroxene as Mercury surface analogue
Nuclear Instruments and Methods in Physics Research B 480 (2020) 10 – 15

P. S. Szabo, R. Chiba, H. Biber, R. Stadlmayr, B. M. Berger, D. Mayer, A. Mutzke, M. Doppler, M. Sauer, J. Appenroth, J. Fleig, A. Foelske-Schmitz, H. Hutter, K. Mezger, H. Lammer, A. Galli, P. Wurz, and F. Aumayr
Solar wind sputtering of wollastonite as a lunar analogue material – Comparisons between experiments and simulations
Icarus 314 (2018) 98 - 105

Nanostructuring of surfaces by highly charged ion impact

Review:
F. Aumayr, S. Facsko, A. S. El-Said, C. Trautmann and M. Schleberger
Topical Review: Single-ion induced surface nanostructures - A comparison between slow highly-charged and swift heavy ions
Journal of Physics: Condensed Matter 23 (2011) 393001 (23 pages)

A. S. El-Said, R. A. Wilhelm, R. Heller, M. Sorokin, S. Facsko, and F. Aumayr
Tuning the fabrication of nanostructures by low-energy highly charged ions
Physical Review Letters 117 (2016) 126101 (5 pages) PDF

A.S. El-Said, R.A. Wilhelm, R. Heller, S. Facsko, C. Lemell, G. Wachter, J. Burgdörfer, R. Ritter, and F. Aumayr
Phase diagram for nanostructuring CaF₂ surfaces by slow highly charged ions
Physical Review Letters 109 (2012) 117602 (5 pages) PDF

A.S. El-Said, R. Heller, W. Meissl, R. Ritter, S. Facsko, C. Lemell, B. Solleder, I. Gebeshuber, G. Betz, M. Toulemonde, W. Möller, J. Burgdörfer, and F. Aumayr
Creation of Nanohillocks on CaF2 Surfaces by Single Slow Highly Charged Ions
Physical Review Letters 100 (2008) 237601 (1-4)

Nanostructuring of surfaces by swift heavy ion impact

E. Gruber, L. Bergen, P. Salou, E. Lattouf, C. Grygiel, Y.Y. Wang, A. Benyagoub, D. Levavasseur, J. Rangama, H. Lebius, B. Ban-d’Etat, M. Schleberger, and F. Aumayr
High resolution AFM studies of irradiated mica - Following the traces of swift heavy ions under grazing incidence
Journal of Physics: Condensed Matter 30 (2018) 285001 (8 pages)

E. Gruber, P. Salou, L. Bergen, M. El Kharrazi, E. Lattouf, C. Grygiel, Y.Y. Wang, A. Benyagoub, D. Levavasseur, J. Rangama, H. Lebius, B. Ban-d’Etat, M. Schleberger, and F. Aumayr
Swift heavy ion irradiation of CaF₂ – from grooves to hillocks in a single ion track
Journal of Physics: Condensed Matter 28 (2016) 405001 (7 pages), IOP coverage

Y. Y. Wang, C. Grygiel, C. Dufour, J. R. Sun, Z. G. Wang, Y. T. Zhao, G. Q. Xiao, R. Cheng, X. M. Zhou, J. R. Ren, S. D. Liu, Y. Lei, Y. B. Sun, R. Ritter, E. Gruber, A. Cassimi, I. Monnet, S. Bouffard, F. Aumayr and M. Toulemonde
Energy deposition by heavy ions: Additivity of kinetic and potential energy contributions in hillock formation on CaF2
Nature Scientific Reports 4 (2014) 5742 (6 pages) PDF

Potential sputtering

Review:
F. Aumayr and HP. Winter
Potential sputtering
Philosophical Transactions of the Royal Society London A 362 (2004) 77 -102

G. Hayderer, S. Cernusca, M. Schmid, P. Varga, HP. Winter and F. Aumayr, D. Niemann, V. Hoffmann, N. Stolterfoht, C. Lemell, L. Wirtz, and J. Burgdörfer
Kinetically-assisted potential sputtering of insulators by highly charged ions
Physical Review Letters 86 (2001) 3530 - 3533

G. Hayderer, M. Schmid, P. Varga, HP. Winter, F. Aumayr, L. Wirtz, C. Lemell, J. Burgdörfer, L. Hägg and C.O. Reinhold
Threshold for Potential Sputtering of LiF
Physical Review Letters 83 (1999) 3948 - 3951

M. Sporn, G. Libiseller, T. Neidhart, M. Schmid, F. Aumayr, HP. Winter, P. Varga, M. Grether , D. Niemann and N. Stolterfoht
Potential Sputtering of Clean SiO2 by Slow Highly Charged Ions
Physical Review Letters 79 (1997) 945 - 948

T. Neidhart, F. Pichler, F. Aumayr, HP. Winter, M. Schmid and P. Varga
Potential sputtering of Lithium Fluoride by Slow Multicharged Ions
Physical Review Letters 74 (1995) 5280 - 5283

Hollow atom formation and potential electron emission

Review:
F. Aumayr, and HP. Winter
Potential electron emission from metal and insulator surfaces
Springer Tracts in Modern Physics 225 (2007) 79 - 112 (takes a long time loading!)

J. Stöckl, T. Suta, F. Ditroi, HP. Winter, and F. Aumayr
Separation of potential and kinetic electron emission for grazing impact of multiply charged Ar ions on a LiF(001) surface
Physical Review Letters 93 (2004) 263201

C. Lemell, J. Stöckl, J. Burgdörfer, G. Betz, HP. Winter and F. Aumayr
Multicharged ion impact on clean Au(111): Suppression of kinetic electron emission in glancing angle scattering
Physical Review Letters 81 (1998) 1965 - 1968

J. Limburg, S. Schippers; R. Hoekstra, R. Morgenstern, H. Kurz, F. Aumayr and HP. Winter
Do hollow atoms exist in front of an insulating LiF surface
Physical Review Letters 75 (1995) 217 - 219

F. Aumayr, H. Kurz, D. Schneider, M.A. Briere, J.W. McDonald, C.E. Cunningham and HP. Winter
Emission of electrons from a clean gold surface induced by slow, very highly charged ions at the image charge acceleration limit
Physical Review Letters 71 (1993) 1943 - 1946

H. Kurz, K. Töglhofer, HP. Winter, F. Aumayr and R. Mann
Electron emission from slow hollow atoms at a clean metal surface
Physical Review Letters 69 (1992) 1140 - 1143

Energy loss

J.I. Juaristi, C. Auth, H. Winter, A. Arnau, K. Eder, D. Semrad, F. Aumayr, P. Bauer, and P.M. Echenique
Unexpected Behaviour of the Stopping of Slow Ions in Ionic Crystals
Physical Review Letters 84 (2000) 2124 - 2127

K. Eder, D. Semrad, P. Bauer, R. Golser, P. Maier-Komor, F. Aumayr, M. Penalba, A. Arnau, J.M. Ugalde and P.M. Echenique
Absence of a “threshold effect” in the energy loss of slow protons traversing solid large band gap insulators
Physical Review Letters 79 (1997) 4112 - 4115

R. Golser, D. Semrad and F. Aumayr
Electronic stopping in a He-H2 mixture substantially exceeds Bragg's rule value
Physical Review Letters 76 (1996) 3104 - 3107

Capillary Guiding

Review:
C. Lemell, J. Burgdörfer, and F. Aumayr
Interaction of charged particles with insulating capillary targets – The guiding effect
Progress in Surface Science 88 (2013) 237 - 278

E. Gruber, G. Kowarik, F. Ladinig, J. P. Waclawek, D. Schrempf, and F. Aumayr
R. J. Bereczky, K. Tökési, P. Gunacker, T. Schweigler, C. Lemell, and J. Burgdörfer
Temperature Control of Ion Guiding Through Insulating Capillaries
Physical Review A 86 (2012) 062901 (8 pages) PDF