Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions

A. S. El-Said, R. Heller, W. Meissl, R. Ritter, S. Facsko, C. Lemell, B. Solleder, I. C. Gebeshuber, G. Betz, M. Toulemonde, W. Möller, J. Burgdörfer, F. Aumayr

Research output: Contribution to journalArticle

110 Citations (Scopus)

Abstract

Upon impact on a solid surface, the potential energy stored in slow highly charged ions is primarily deposited into the electronic system of the target. By decelerating the projectile ions to kinetic energies as low as 150×qeV, we find first unambiguous experimental evidence that potential energy alone is sufficient to cause permanent nanosized hillocks on the (111) surface of a CaF2 single crystal. Our investigations reveal a surprisingly sharp and well-defined threshold of potential energy for hillock formation which can be linked to a solid-liquid phase transition.

Original languageEnglish
Article number237601
JournalPhysical Review Letters
Volume100
Issue number23
DOIs
Publication statusPublished - 10 Jun 2008
Externally publishedYes

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potential energy
ions
solid surfaces
projectiles
liquid phases
kinetic energy
thresholds
causes
single crystals
electronics

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

El-Said, A. S., Heller, R., Meissl, W., Ritter, R., Facsko, S., Lemell, C., ... Aumayr, F. (2008). Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions. Physical Review Letters, 100(23), [237601]. https://doi.org/10.1103/PhysRevLett.100.237601

Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions. / El-Said, A. S.; Heller, R.; Meissl, W.; Ritter, R.; Facsko, S.; Lemell, C.; Solleder, B.; Gebeshuber, I. C.; Betz, G.; Toulemonde, M.; Möller, W.; Burgdörfer, J.; Aumayr, F.

In: Physical Review Letters, Vol. 100, No. 23, 237601, 10.06.2008.

Research output: Contribution to journalArticle

El-Said, AS, Heller, R, Meissl, W, Ritter, R, Facsko, S, Lemell, C, Solleder, B, Gebeshuber, IC, Betz, G, Toulemonde, M, Möller, W, Burgdörfer, J & Aumayr, F 2008, 'Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions', Physical Review Letters, vol. 100, no. 23, 237601. https://doi.org/10.1103/PhysRevLett.100.237601
El-Said AS, Heller R, Meissl W, Ritter R, Facsko S, Lemell C et al. Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions. Physical Review Letters. 2008 Jun 10;100(23). 237601. https://doi.org/10.1103/PhysRevLett.100.237601
El-Said, A. S. ; Heller, R. ; Meissl, W. ; Ritter, R. ; Facsko, S. ; Lemell, C. ; Solleder, B. ; Gebeshuber, I. C. ; Betz, G. ; Toulemonde, M. ; Möller, W. ; Burgdörfer, J. ; Aumayr, F. / Creation of nanohillocks on CaF2 surfaces by single slow highly charged ions. In: Physical Review Letters. 2008 ; Vol. 100, No. 23.
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