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Energy threshold for the creation of nanodots on SrTiO3 by swift heavy ions (CROSBI ID 162366)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Karlušić, Marko ; Akcöltekin, Sevilay ; Osmani, Orkhan ; Monnet, Isabelle ; Lebius, Henning ; Jakšić, Milko ; Schleberger, Marika Energy threshold for the creation of nanodots on SrTiO3 by swift heavy ions // New journal of physics, 12 (2010), 043009-1-043009-11. doi: 10.1088/1367-2630/12/4/043009

Podaci o odgovornosti

Karlušić, Marko ; Akcöltekin, Sevilay ; Osmani, Orkhan ; Monnet, Isabelle ; Lebius, Henning ; Jakšić, Milko ; Schleberger, Marika

engleski

Energy threshold for the creation of nanodots on SrTiO3 by swift heavy ions

We present experimental and theoretical data on the threshold behaviour of nanodot creation with swift heavy ions. A model calculation based on a two-temperature model that takes into account the spatially resolved electron density gives a threshold of 12 keV nm−1 below which the energy density at the end of the track is no longer high enough to melt the material. In the corresponding experiments, we irradiated SrTiO3 surfaces under grazing incidence with swift heavy ions. The resulting chains of nanodots were analysed by atomic force microscopy (AFM). In addition, some samples of SrTiO3 irradiated under normal incidence were analysed by transmission electron microscopy (TEM). Both experiments showed two thresholds, which were connected with the appearance of tracks and the creation of fully developed tracks. The threshold values were similar for surface and bulk tracks, suggesting that the same processes occur at both glancing and normal incidence. 5 Author to whom any correspondence should be addressed.

nanodots; energy threshold

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Podaci o izdanju

12

2010.

043009-1-043009-11

objavljeno

1367-2630

10.1088/1367-2630/12/4/043009

Povezanost rada

Fizika

Poveznice
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