S. Raghuvansy, J.P. McCandless, M. Schowalter, A. Karg, M. Alonso-Orts, M.S. Williams, C. Tessarek, S. Figge, K. Nomoto, H.G. Xing, D.G. Schlom, A. Rosenauer, D. Jena, M. Eickhoff, and P. Vogt, “Growth of β-Ga2O3 and ϵ/κ-Ga2O3 on AlN(0001) by Molecular-Beam Epitaxy,” APL Materials 11 (2023) 111113.