Surface nanostructuring of LiNbO3by high-density electronic excitations

A. S. El-Said; R. A. Wilhelm; S. Facsko; C. Trautmann

doi:10.1016/j.nimb.2013.03.008

Surface nanostructuring of LiNbO₃by high-density electronic excitations

A. S. El-Said^*
, R. A. Wilhelm
, S. Facsko
, C. Trautmann

^*Corresponding author for this work

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

17 Scopus citations

Abstract

Lithium niobate (LiNbO₃) single crystals were irradiated with high energy gold ions (0.5-2.2 GeV) at the UNILAC (GSI) and with 150-keV highly charged xenon ions from an EBIT (Electron Beam Ion Trap, HZDR). The surfaces of the irradiated crystals were analyzed by scanning force microscopy showing very similar topographic changes. Swift heavy ions and slow highly charged ions produce hillock-like nanostructures on the surface. In both cases, the energy deposition of the ions is characterized by dense localized electronic excitations and efficient transfer to the lattice. Furthermore, the irradiation results in a shift in the band gap energy as evidenced by UV-Vis absorption spectroscopy. Specific modifications (e.g. hillock size, energy loss threshold) induced by slow highly charged ions are discussed in comparison with effects due to the electronic energy loss by swift heavy ions.

Original language	English
Pages (from-to)	265-268
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	315
DOIs	https://doi.org/10.1016/j.nimb.2013.03.008
State	Published - 15 Nov 2013

Bibliographical note

Funding Information:
The support by KFUPM (Project No. SB111006) and Alexander von Humboldt Foundation is greatly acknowledged. RAW acknowledges the DFG for financial support under project number HE 6174/1-1. The authors thank K. Schwartz at GSI (Darmstadt) for the fruitful discussions.

Keywords

Energy loss
Highly charged ions
Ion-surface interaction
Swift heavy ions

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nimb.2013.03.008

Cite this

@article{0757166fddb14304803d935b134fc483,

title = "Surface nanostructuring of LiNbO3by high-density electronic excitations",

abstract = "Lithium niobate (LiNbO3) single crystals were irradiated with high energy gold ions (0.5-2.2 GeV) at the UNILAC (GSI) and with 150-keV highly charged xenon ions from an EBIT (Electron Beam Ion Trap, HZDR). The surfaces of the irradiated crystals were analyzed by scanning force microscopy showing very similar topographic changes. Swift heavy ions and slow highly charged ions produce hillock-like nanostructures on the surface. In both cases, the energy deposition of the ions is characterized by dense localized electronic excitations and efficient transfer to the lattice. Furthermore, the irradiation results in a shift in the band gap energy as evidenced by UV-Vis absorption spectroscopy. Specific modifications (e.g. hillock size, energy loss threshold) induced by slow highly charged ions are discussed in comparison with effects due to the electronic energy loss by swift heavy ions.",

keywords = "Energy loss, Highly charged ions, Ion-surface interaction, Swift heavy ions",

author = "El-Said, \{A. S.\} and Wilhelm, \{R. A.\} and S. Facsko and C. Trautmann",

note = "Funding Information: The support by KFUPM (Project No. SB111006) and Alexander von Humboldt Foundation is greatly acknowledged. RAW acknowledges the DFG for financial support under project number HE 6174/1-1. The authors thank K. Schwartz at GSI (Darmstadt) for the fruitful discussions.",

year = "2013",

month = nov,

day = "15",

doi = "10.1016/j.nimb.2013.03.008",

language = "English",

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T1 - Surface nanostructuring of LiNbO3by high-density electronic excitations

AU - El-Said, A. S.

AU - Wilhelm, R. A.

AU - Facsko, S.

AU - Trautmann, C.

N1 - Funding Information: The support by KFUPM (Project No. SB111006) and Alexander von Humboldt Foundation is greatly acknowledged. RAW acknowledges the DFG for financial support under project number HE 6174/1-1. The authors thank K. Schwartz at GSI (Darmstadt) for the fruitful discussions.

PY - 2013/11/15

Y1 - 2013/11/15

N2 - Lithium niobate (LiNbO3) single crystals were irradiated with high energy gold ions (0.5-2.2 GeV) at the UNILAC (GSI) and with 150-keV highly charged xenon ions from an EBIT (Electron Beam Ion Trap, HZDR). The surfaces of the irradiated crystals were analyzed by scanning force microscopy showing very similar topographic changes. Swift heavy ions and slow highly charged ions produce hillock-like nanostructures on the surface. In both cases, the energy deposition of the ions is characterized by dense localized electronic excitations and efficient transfer to the lattice. Furthermore, the irradiation results in a shift in the band gap energy as evidenced by UV-Vis absorption spectroscopy. Specific modifications (e.g. hillock size, energy loss threshold) induced by slow highly charged ions are discussed in comparison with effects due to the electronic energy loss by swift heavy ions.

AB - Lithium niobate (LiNbO3) single crystals were irradiated with high energy gold ions (0.5-2.2 GeV) at the UNILAC (GSI) and with 150-keV highly charged xenon ions from an EBIT (Electron Beam Ion Trap, HZDR). The surfaces of the irradiated crystals were analyzed by scanning force microscopy showing very similar topographic changes. Swift heavy ions and slow highly charged ions produce hillock-like nanostructures on the surface. In both cases, the energy deposition of the ions is characterized by dense localized electronic excitations and efficient transfer to the lattice. Furthermore, the irradiation results in a shift in the band gap energy as evidenced by UV-Vis absorption spectroscopy. Specific modifications (e.g. hillock size, energy loss threshold) induced by slow highly charged ions are discussed in comparison with effects due to the electronic energy loss by swift heavy ions.

KW - Energy loss

KW - Highly charged ions

KW - Ion-surface interaction

KW - Swift heavy ions

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