Understanding the Structural–Chemical Evolution of Epitaxial NbN/Al2O3/NbN Trilayers with Varying NbN Thickness
Jith Sarker,
Prachi Garg,
Menglin Zhu
et al.
Abstract:Epitaxial NbN/Al 2 O 3 /NbN trilayer structures with NbN thicknesses of 50−200 nm were grown by pulsed laser deposition. Within each trilayer configuration, it was observed that the top NbN layers exhibited slightly reduced crystallinity compared to the bottom NbN layers due to the strain-induced effects caused by the lattice mismatch between NbN and Al 2 O 3 . Notably, the trilayer structures exhibited epitaxial growth with consistent in-plane rotational orientations in the NbN layers. Significant deviations … Show more
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