alkanes EFMAmplitude HBN EPFL Co/Cr/Pt HDD LateralForceMicroscopy Inorganic GaN HafniumDioxide Worcester_Polytechnic_Institute PMNPT CuFoil bias_mode 2-vinylpyridine Polyvinylidene Au111 CuSubstrate Electrode BismuthVanadate Array NUS_NNI_Nanocore Ceramic Sulfur thermoplastic_elastomers AmplitudeModulation India BTO HexagonalBoronNitride Ucl Ferrite Defects IIT-chennai PyroelectricDetector conductive