Non-stoichiometric transfer of complex oxides by pulsed laser deposition at low fluences

Dam, B.; Rector, J. H.; Johansson, J.; De Groot, D.G.; Griessen, Ronald

Non-stoichiometric transfer of complex oxides by pulsed laser deposition at low fluences

Journal article (1996)

Authors

B. Dam Vrije Universiteit Amsterdam

J. H. Rector Vrije Universiteit Amsterdam

J. Johansson Vrije Universiteit Amsterdam

D.G. De Groot Vrije Universiteit Amsterdam

Ronald Griessen Vrije Universiteit Amsterdam

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Published Date

1996

Language

English

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Abstract

We provide evidence that non-stoichiometric ablation of YBa₂Cu₃O_7-δ at low fluences is due to a phase separation of the target surface. On the other hand, in SrTiO₃ we find at low fluences evidence for preferential ablation which is assisted by volume-diffusion. As a result, the Sr/Ti ratio of the ablated films can be tuned by choosing the appropriate fluence.