001005640 001__ 1005640 001005640 005__ 20240820094019.0 001005640 0247_ $$2doi$$a10.1002/apxr.202200122 001005640 0247_ $$2Handle$$a2128/34544 001005640 0247_ $$2WOS$$aWOS:001283292100003 001005640 037__ $$aFZJ-2023-01583 001005640 041__ $$aEnglish 001005640 082__ $$a530 001005640 1001_ $$00000-0001-5823-3665$$aGuasco, Laura$$b0$$eCorresponding author 001005640 245__ $$aTuning Epitaxial Growth of Nb on MgO(100) 001005640 260__ $$aWeinheim$$bWiley-VCH GmbH$$c2023 001005640 3367_ $$2DRIVER$$aarticle 001005640 3367_ $$2DataCite$$aOutput Types/Journal article 001005640 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1687173648_9037 001005640 3367_ $$2BibTeX$$aARTICLE 001005640 3367_ $$2ORCID$$aJOURNAL_ARTICLE 001005640 3367_ $$00$$2EndNote$$aJournal Article 001005640 520__ $$aNiobium thin films are central to many applications, such as superconducting radio-frequency cavities and superconducting qubits, due to its relatively high superconducting temperature and easiness to form heterostructures. However, literature on epitaxial growth of Nb on one of the most commonly used substrates, that is MgO, reports contradicting results. In the present parametric study, a coherent picture of how the crystalline orientation and the film morphology depend on the growth parameters is presented. The effects of growth parameters such as growth temperature, growth rate, deposition technique, and surface quality on the transport properties of the superconductor are discussed. 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