TemperatureControlledAFM light_emission mechanical_property Potential PANI Polarization Copolymer Mobile Pinpoint PFM Ecoli ring shape MeltingPoint Conduct multi_layer Varistor Tungsten_disulfide SThM Metal TPU Chrome cooling ScanningTunnelingMicroscopy PhaseTransition Spain HighAspect mfm_amplitude LiftMode FloppyDisk NCM\ silicon_oxide phase_change Ni81Fe19 Ceramic Vacuum self_assembly