by A. García-Navarro, A. Méndez, J. Olivares, G. García, F. Agullo-López, M. Zayat, D. Levy and L. Vazquez
Abstract:
The surface of LiNbO3 crystals after swift ion irradiation in the low velocity regime has been investigated by optical and atomic force microscopy (AFM). Samples were irradiated with Cu 50MeV, Cl 46MeV and Br 12MeV ions. Before any additional treatment the surface of the sample irradiated with Cu ions shows hillocks of a 5–8nm diameter and of 5nm in height. The latent tracks were subsequently etched at room temperature with HF:HNO3 solutions during a few minutes. The shape of the surface pore caused by etching was strongly anisotropic for the Cu irradiations and only slightly anisotropic for the Br irradiations. The larger track length and surface stopping power for the Cu 50MeV ions is most likely the origin of the final difference in pore shape via the induced swelling and enhanced etching rate. Optical waveguide measurements were also performed in the case of Cl irradiations to obtain in-depth averaged values of internal amorphization and track radius.
Reference:
A. García-Navarro, A. Méndez, J. Olivares, G. García, F. Agullo-López, M. Zayat, D. Levy and L. Vazquez, “Morphology of ion tracks and nanopores in LiNbO3 produced by swift-ion-beam irradiation”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 249, no. 1, pp. 172–176.
Bibtex Entry:
@article{garcia-navarro_morphology_2006,
series = {Ion {Beam} {Analysis}},
title = {Morphology of ion tracks and nanopores in {LiNbO3} produced by swift-ion-beam irradiation},
volume = {249},
issn = {0168-583X},
url = {http://www.sciencedirect.com/science/article/pii/S0168583X06003946},
doi = {10.1016/j.nimb.2006.03.107},
abstract = {The surface of LiNbO3 crystals after swift ion irradiation in the low velocity regime has been investigated by optical and atomic force microscopy (AFM). Samples were irradiated with Cu 50MeV, Cl 46MeV and Br 12MeV ions. Before any additional treatment the surface of the sample irradiated with Cu ions shows hillocks of a 5–8nm diameter and of 5nm in height. The latent tracks were subsequently etched at room temperature with HF:HNO3 solutions during a few minutes. The shape of the surface pore caused by etching was strongly anisotropic for the Cu irradiations and only slightly anisotropic for the Br irradiations. The larger track length and surface stopping power for the Cu 50MeV ions is most likely the origin of the final difference in pore shape via the induced swelling and enhanced etching rate. Optical waveguide measurements were also performed in the case of Cl irradiations to obtain in-depth averaged values of internal amorphization and track radius.},
number = {1},
urldate = {2017-07-21},
journal = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
author = {García-Navarro, A. and Méndez, A. and Olivares, J. and García, G. and Agullo-López, F. and Zayat, M. and Levy, D. and Vazquez, L.},
month = aug,
year = {2006},
keywords = {Ion tracks, Lithium niobate, Nanopores, Optical waveguides, Swift ion irradiation},
pages = {172--176},
file = {ScienceDirect Snapshot:E:\cmam_papers\files\531\S0168583X06003946.html:text/html;ScienceDirect Snapshot:E:\Usuarios\Administrator\Zotero\storage\4U9DBN3I\S0168583X06003946.html:text/html},
}