Strain distribution in GaN/AlN superlattices grown on AlN/sapphire templates: comparison of X‐ray diffraction and photoluminescence studies. - Wierzbicka, Aleksandra; Kaminska, Agata; Sobczak, Kamil; Jankowski, Dawid; Koronski, Kamil; Strak, Pawel; Sobanska, Marta; Zytkiewicz, Zbigniew R. (Acta Crystallographica Section B: Structural Science, Crystal Engineering & Materials, 2025)