Beam target interaction during growth of YBa2Cu3O7−x by the laser ablation technique
- 21 October 1991
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (17) , 2186-2188
- https://doi.org/10.1063/1.106068
Abstract
It was proven by powder x‐ray diffractometry and by energy dispersive x‐ray analysis (EDX) that after ablation of the ceramic YBa2Cu3O7−x target by the excimer laser pulses the original composition of the target remained unchanged. The depth of ablation was measured as a function of the energy density of the laser beam. The absorption coefficient for ablation, in case of ceramic material with a density of 5.4 g/cm3, was α=4.45×104 cm−1 and the minimum energy density was 2.5 J/cm2. The temperature that the ablated material was subjected to, in the energy range of 2.5–3.4 J/cm2, did not exceed 970 °C.Keywords
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