PetruPoni_Institute Polyvinylidene suspended_graphene HexagonalBN PtfeFilter 2-vinylpyridine Edwin MultiferroicMaterials Jason Wang Cobalt thermal_conductivity dichalcogenide Fujian Current TransitionMetal Croatia bias_mode Chromium Platinum Phase Co/Cr/Pt Adhesion cooling atomic_layer Barium_titanate Glass GalliumPhosphide Pore PDMS tip_bias_mode Yeditepe_University Sadowski Collagen Tin sulfide