Conductive AFM TungstenDeposition gallium_nitride NusEce PECurve TiO2 Hysteresys FailureAnalysis InorganicCompound KAIST NUS hard_disk LeakageCurrent Tungsten_disulfide SiliconOxide HanyangUniv Dr.JurekSadowski VortexCore fifber Techcomp Piezoresponse Mfm HACrystal Array PetruPoni_Institute HiVacuum Ferroelectric atomic_steps CrAu SFAs semifluorinated alkane MolybdenumDisulfide PolyvinylAcetate Leakage HumanHair