ring shape Crystal Vortex Aggregated_molecules Domain PatternedSapphireSubstrat PVAC PhaseImaging Polypropylene SiliconCrystal Calcium Beads exfoliate FrictionalForce SThM MagneticArray IISCBangalore HexacontaneFilm Optical PvdfFilm mechanical property thermal_property membrane Graphite Wang Temasek_Lab HiVacuum MultiLayerCeramicCapacitor SKKU CeNSE_IISc Pinpoint CVD DeoxyribonucleicAcid Au111 Wonseok