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SAXS and TEM investigation of ion tracks in neodymium-doped yttrium aluminium garnet

Rodriguez, M. D. and Li, W. X. and Chen, F. and Trautmann, C. and Bierschenk, T. and Afra, B. and Schauries, D. and Ewing, R. C. and Mudie, S. T. and Kluth, P. (2014):
SAXS and TEM investigation of ion tracks in neodymium-doped yttrium aluminium garnet.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier Science Publishing, pp. 150-153, 326, ISSN 0168583X, [Online-Edition: http://dx.doi.org/10.1016/j.nimb.2013.10.076],
[Article]

Abstract

Neodymium-doped yttrium aluminium garnet (Nd:Y3Al5O12 or Nd:YAG) crystals were irradiated with 2.2 GeV 197Au ions. Ion track formation was investigated using synchrotron based small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). Cylindrical ion tracks consisted of an amorphous core with sharp boundaries within the crystalline matrix. The SAXS results, modelled as long cylindrical tracks, provided a constant track density that is 0.6 ± 0.3% different to that of the surrounding matrix. The average track radii determined by both techniques were in excellent agreement, 4.4 ± 0.1 nm from SAXS and 4.4 ± 0.5 nm from TEM. A comparison with previous results of ion tracks in YAG indicates that the track radius is not affected by the presence of 1 mol% Nd dopant.

Item Type: Article
Erschienen: 2014
Creators: Rodriguez, M. D. and Li, W. X. and Chen, F. and Trautmann, C. and Bierschenk, T. and Afra, B. and Schauries, D. and Ewing, R. C. and Mudie, S. T. and Kluth, P.
Title: SAXS and TEM investigation of ion tracks in neodymium-doped yttrium aluminium garnet
Language: English
Abstract:

Neodymium-doped yttrium aluminium garnet (Nd:Y3Al5O12 or Nd:YAG) crystals were irradiated with 2.2 GeV 197Au ions. Ion track formation was investigated using synchrotron based small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). Cylindrical ion tracks consisted of an amorphous core with sharp boundaries within the crystalline matrix. The SAXS results, modelled as long cylindrical tracks, provided a constant track density that is 0.6 ± 0.3% different to that of the surrounding matrix. The average track radii determined by both techniques were in excellent agreement, 4.4 ± 0.1 nm from SAXS and 4.4 ± 0.5 nm from TEM. A comparison with previous results of ion tracks in YAG indicates that the track radius is not affected by the presence of 1 mol% Nd dopant.

Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume: 326
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: Swift heavy ion irradiation, Ion tracks, SAXS, TEM, Nd:YAG, Refractive index
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Ion-Beam-Modified Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 12 Jan 2015 12:16
Official URL: http://dx.doi.org/10.1016/j.nimb.2013.10.076
Additional Information:

17th International Conference on Radiation Effects in Insulators (REI)

Identification Number: doi:10.1016/j.nimb.2013.10.076
Funders: P.K. thanks the Australian Research Council for financial support., F. Chen acknowledges the financial support from the National Natural Science Foundation (Grant No. 10925524)., Part of this research was financed by the Office of Basic Energy Sciences of the USDOE (DE-FG02-97ER45656).
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