Surface morphology's role in water freezing onset: A study of graphene on ruthenium thin films produced with two different methods - Selfors, EW; Al Taleb, A; Majer, LN; Smink, S; Thomas, PJ; Akhtar, N; Castilla, JM; Prieto, C; Farias, D; Mannhart, J; Braun, W; Holst, B (Thin Solid Films, 2025)