PiezoelectricForceMicroscopy LateralForce mechanical_property Praseodymium StyreneBeads Fiber mfm_amplitude AM_SKPM polyvinyl acetate plastic Polyvinylidene molecules Alkane small_scan PhaseImaging MfmPhase DLaTGS ForceDistanceSpectroscopy RedBloodCell VerticalPFM TriGlycineSulphate HexagonalBN SKKU HafniumDioxide Subhajjit molecular_self_assembly AIN MagneticPhase Glass Mosfet epitaxy Laser Copper BloodCell Temasek_Lab