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    Surface patterning of wide-gap semiconducting β-Ga2O3 thin films by area selective crystallization via room-temperature excimer laser annealing and low-toxic wet etching processes by Daishi Shiojiri, Ryoya Kai, Satoru Kaneko, Akifumi Matsuda, Mamoru Yoshimoto

    Published 2025-01-01
    “…In the present study, we have developed a fully room-temperature and low-toxic surface patterning method for β -Ga _2 O _3 , which consists of the area selective laser-induced crystallization of amorphous Ga _2 O _3 thin films and acid solution etching processes. Highly ( $\bar{2}$ 01)-oriented crystalline β -Ga _2 O _3 thin films with ∼70 nm thickness on α -Al _2 O _3 (0001) substrates were obtained through a combination of room-temperature deposition process and the subsequent excimer laser annealing at a deep ultraviolet wavelength of 248 nm. …”
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    Quand l’exploitation mémorielle officielle des archives conduit à redécouvrir les fonds : le cas de l’enregistrement filmé du général de Gaulle du 2 juillet 1940 by Violaine Challéat-Fonck

    Published 2014-09-01
    “…In this occasion, the documentary knowledge of Archives collections can be improved, as shown by the example developed here, concerning a filmed recording of the general de Gaulle, dated 1940.…”
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