vertical_PFM LMF PVA Treatment CuSubstrate atomic_steps Floppy Al2O3 ScanningThermalMicroscopy Vanadate graphene_hybrid CrystalGrowing BFO NeodymiumMagnets Vortex Solar Hysteresys ito_film Nanostructure FuelCell dielectric_trench Workfunction mechanical property Yttria_stabilized_Zirconia Conduct Ceramic Biofilm Roughness SoftSample Defects Conductive AFM DomainSwitching IIT-chennai LateralForce Aluminum