NK

N.W. Koeman

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Master thesis (2018) - Niels Koeman, Mark de Reuver, Scott Cunningham, Yao-hua Tan
Journal article (2003) - A. C. Lokhorst, M. C.R. Heijna, J. H. Rector, I. A.M.E. Giebels, N. J. Koeman, B. Dam
In-situ deposited YH2 films ranging from epitaxial to nanocrystalline were prepared by pulsed laser deposition (PLD). PLD has the advantage that the yttrium target acts as a hydrogen source. Comparing the switching behavior to that of MBE-grown, ex-situ loaded films, the PLD-films show a reduced optical and electrical contrast in switching, which is probably due to the formation of Y(OH)3. On the other hand, we found that in the nanocrystalline PLD-films the hysteresis in switching is absent. Moreover, these films have a smoother surface morphology. Both effects are important for the implementation of switchable rare earth hydride films in all-solid-state devices. ...