HACrystal FM_SKPM MESA structure MoirePattern PS_LDPE Varistor ferromagnetic IISCBangalore plastic Zagreb Sperm alkanes PinPointMode Materials TipBiasMode nanomechanical non_contact ForceVolumeMapping Anneal Mobile temperature_control Sidewall YszSubstrate Led Gallium_Arsenide self_assembly PpLdpe Copolymer TemperatureControllerStage Titanate NUS kelvin probe force microscopy Writing SurfaceChange Tape