Austenite AAO ScanningSpreadingResistanceMicroscopy non_contact DataStorage cooling PVAP3HT OpticalModulator LMF Gong Lift Polydimethylsiloxane atomic_layer Ferroelectric Thermal Mapping HafniumDioxide CHRYSALIS_INC dielectric trench F14H20 FM-KPFM ScanningTunnelingMicroscopy Strontium silicon_oxide ring shape MolybdenumDisulfide Silicon AlkaneFilm SThM polyvinyl acetate PMNPT Insulator IMT_Bucharest Hysteresys LeakageCurrent