Surface nanostructures induced by slow highly charged ions on CaF2 single crystals

A. S. El-Said; W. Meissl; M. C. Simon; J. R. Crespo López-Urrutia; I. C. Gebeshuber; M. Lang; HP Winter; J. Ullrich; F. Aumayr

doi:10.1016/j.nimb.2006.12.140

Surface nanostructures induced by slow highly charged ions on CaF₂ single crystals

A. S. El-Said
, W. Meissl
, M. C. Simon
, J. R. Crespo López-Urrutia
, I. C. Gebeshuber
, M. Lang
, HP Winter
, J. Ullrich
, F. Aumayr^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

We present first results on the generation of surface nanostuctures by slow HCI on cleaved CaF₂ (1 1 1) surfaces. The CaF₂ single crystals were irradiated with slow (v ≪ 1 a.u.) Xe⁴⁴⁺ HCI from the Heidelberg-EBIT. Like for other ionic fluoride single crystals, ion-induced surface structures in CaF₂ are known to be stable in atmospheric conditions at room temperature. After irradiation the crystals were investigated by scanning force microscopy. Topographic images reveal the generation of nanometric hillocks protruding from the surface. The number of hillocks per unit area is in agreement with the applied ion fluence. A discussion of the role of the potential energy as well as a comparison with observations for swift heavy ion irradiations of CaF₂ single crystals are presented.

Original language	English
Pages (from-to)	346-349
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	256
Issue number	1
DOIs	https://doi.org/10.1016/j.nimb.2006.12.140
State	Published - Mar 2007
Externally published	Yes

Bibliographical note

Funding Information:
This work has been supported by Austrian Science Foundation FWF (Projects Nos. M894-N02 and P17449). The experiments were performed at the distributed ITS-LEIF-Infrastructure at MPI Heidelberg Germany, supported by Transnational Access granted by the European Project RII3 026015.

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nimb.2006.12.140

Cite this

El-Said, A. S., Meissl, W., Simon, M. C., Crespo López-Urrutia, J. R., Gebeshuber, I. C., Lang, M., Winter, HP., Ullrich, J., & Aumayr, F. (2007). Surface nanostructures induced by slow highly charged ions on CaF₂ single crystals. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 256(1), 346-349. https://doi.org/10.1016/j.nimb.2006.12.140

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title = "Surface nanostructures induced by slow highly charged ions on CaF2 single crystals",

abstract = "We present first results on the generation of surface nanostuctures by slow HCI on cleaved CaF2 (1 1 1) surfaces. The CaF2 single crystals were irradiated with slow (v ≪ 1 a.u.) Xe44+ HCI from the Heidelberg-EBIT. Like for other ionic fluoride single crystals, ion-induced surface structures in CaF2 are known to be stable in atmospheric conditions at room temperature. After irradiation the crystals were investigated by scanning force microscopy. Topographic images reveal the generation of nanometric hillocks protruding from the surface. The number of hillocks per unit area is in agreement with the applied ion fluence. A discussion of the role of the potential energy as well as a comparison with observations for swift heavy ion irradiations of CaF2 single crystals are presented.",

author = "El-Said, \{A. S.\} and W. Meissl and Simon, \{M. C.\} and \{Crespo L{\'o}pez-Urrutia\}, \{J. R.\} and Gebeshuber, \{I. C.\} and M. Lang and HP Winter and J. Ullrich and F. Aumayr",

note = "Funding Information: This work has been supported by Austrian Science Foundation FWF (Projects Nos. M894-N02 and P17449). The experiments were performed at the distributed ITS-LEIF-Infrastructure at MPI Heidelberg Germany, supported by Transnational Access granted by the European Project RII3 026015.",

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El-Said, AS, Meissl, W, Simon, MC, Crespo López-Urrutia, JR, Gebeshuber, IC, Lang, M, Winter, HP, Ullrich, J & Aumayr, F 2007, 'Surface nanostructures induced by slow highly charged ions on CaF₂ single crystals', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 256, no. 1, pp. 346-349. https://doi.org/10.1016/j.nimb.2006.12.140

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T1 - Surface nanostructures induced by slow highly charged ions on CaF2 single crystals

AU - El-Said, A. S.

AU - Meissl, W.

AU - Simon, M. C.

AU - Crespo López-Urrutia, J. R.

AU - Gebeshuber, I. C.

AU - Lang, M.

AU - Winter, HP

AU - Ullrich, J.

AU - Aumayr, F.

N1 - Funding Information: This work has been supported by Austrian Science Foundation FWF (Projects Nos. M894-N02 and P17449). The experiments were performed at the distributed ITS-LEIF-Infrastructure at MPI Heidelberg Germany, supported by Transnational Access granted by the European Project RII3 026015.

PY - 2007/3

Y1 - 2007/3

N2 - We present first results on the generation of surface nanostuctures by slow HCI on cleaved CaF2 (1 1 1) surfaces. The CaF2 single crystals were irradiated with slow (v ≪ 1 a.u.) Xe44+ HCI from the Heidelberg-EBIT. Like for other ionic fluoride single crystals, ion-induced surface structures in CaF2 are known to be stable in atmospheric conditions at room temperature. After irradiation the crystals were investigated by scanning force microscopy. Topographic images reveal the generation of nanometric hillocks protruding from the surface. The number of hillocks per unit area is in agreement with the applied ion fluence. A discussion of the role of the potential energy as well as a comparison with observations for swift heavy ion irradiations of CaF2 single crystals are presented.

AB - We present first results on the generation of surface nanostuctures by slow HCI on cleaved CaF2 (1 1 1) surfaces. The CaF2 single crystals were irradiated with slow (v ≪ 1 a.u.) Xe44+ HCI from the Heidelberg-EBIT. Like for other ionic fluoride single crystals, ion-induced surface structures in CaF2 are known to be stable in atmospheric conditions at room temperature. After irradiation the crystals were investigated by scanning force microscopy. Topographic images reveal the generation of nanometric hillocks protruding from the surface. The number of hillocks per unit area is in agreement with the applied ion fluence. A discussion of the role of the potential energy as well as a comparison with observations for swift heavy ion irradiations of CaF2 single crystals are presented.

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