FloppyDisk Bmp LiNbO3 cooling LeakageCurrent piezoelectric force microscopy IVSpectroscopy FAFailureAnlaysis BloodCell neodymium_magnets University_of_Regensburg Jason SolarCell ScratchMode Nanotechnology DomainSwitching I-VSpectroscopy optoelectronics dichalcogenide HardDiskMedia MagneticPhase TemperatureControllerStage CeramicCapacitor MultiferroicMaterials Tin sulfide 3-hexylthiophene Dr.JurekSadowski PiezoelectricForceMicroscopy PVAP3HT TungstenThinFilmDeposition Chrome PolyvinylideneFluoride China tip_bias_mode electrospinning