Abstract
AbstractExperimental observations suggesting a lateral growth mode at {110} and {211} garnet LPE films are reported. Growth steps are revealed using a gold decoration technique and a new decoration method based on the condensation of PbO nuclei is developed which allows to image the step structure of the whole film surface using light optical interference contrast. The step velocity reduced per K undercooling of spiral steps having step distances larger than 100 nm amounts to (0.70 ± 0.10) μm/min ± K independently of step density. Spiral rotation rates and critical nuclei radii are in the order of 1 s−1 and 10 nm respectively.
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