Slow highly charged ion induced nanopit formation on the KCl(001) surface

We report on nanostructuring of the KCl(001) surface induced by the individual impact of slow highly charged ions. Samples were irradiated with Xe ions with charge states of Q = 15 to 40 at kinetic energies from 1.7 to 160 keV. The formation of nanopits at the virgin surface is observed and attributed to a defect-mediated desorption process involving the removal of up to 2000 surface atoms per incident ion. The depth of the produced pits is shallow, but not limited to the first monolayer. From the variation of the ion parameters (charge state and kinetic energy) we derive a phase diagram for the structuring of the KCl(001) surface with highly charged ions.

[1]  W. Möller,et al.  Charge-state-dependent energy loss of slow ions. II. Statistical atom model , 2016 .

[2]  F. Krok,et al.  Dynamics of the defect-mediated desorption of alkali halide surfaces , 2012 .

[3]  R. Heller,et al.  Phase diagram for nanostructuring CaF(2) surfaces by slow highly charged ions. , 2012, Physical review letters.

[4]  J. Ullrich,et al.  Pit formation on poly(methyl methacrylate) due to ablation induced by individual slow highly charged ion impact , 2012 .

[5]  C. Trautmann,et al.  Single ion induced surface nanostructures: a comparison between slow highly charged and swift heavy ions , 2011, Journal of physics. Condensed matter : an Institute of Physics journal.

[6]  R. Heller,et al.  Surface nanostructures by single highly charged ions , 2009, Journal of physics. Condensed matter : an Institute of Physics journal.

[7]  R. Heller,et al.  Defect mediated desorption of the KBr(001) surface induced by single highly charged ion impact. , 2008, Physical review letters.

[8]  I. Gebeshuber,et al.  Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions. , 2008, Physical Review Letters.

[9]  S. Ohtani,et al.  Electronic interaction of individual slow highly charged ions with TiO 2 (110) , 2008 .

[10]  C. Trautmann,et al.  On the nano-hillock formation induced by slow highly charged ions on insulator surfaces , 2007 .

[11]  C. Trautmann,et al.  Jetlike component in sputtering of LiF induced by swift heavy ions. , 2002, Physical review letters.

[12]  Pierre Blondy,et al.  Micromachined filters for 38 and 77 GHz supported on thin membranes , 2001 .

[13]  Winter,et al.  Do hollow atoms exist in front of an insulating LiF(100) surface? , 1995, Physical review letters.

[14]  Winter,et al.  Emission of electrons from a clean gold surface induced by slow, very highly charged ions at the image charge acceleration limit. , 1993, Physical review letters.

[15]  Winter,et al.  Neutralization of slow multicharged ions at a clean gold surface: Total electron yields. , 1993, Physical review. A, Atomic, molecular, and optical physics.