epitaxy exfoliate nanomechanical Deposition Mobile MESA structure Magnets lift_mode heterojunctions MagneticArray Conductance Materials STM Polymer medical Gallium temperature controller AFM Non-ContactMode Optical C_AFM fluorocarbon India PhaseChange Modulus Ferroelectric PpLdpe Fiber Polyaniline NiFe Scanning_Thermal_Microscopy Perovskite PhaseTransition LiftHeight PolymerBlend SFAs