I-VSpectroscopy BaTiO3 Fiber self-assembly Hysteresys piezoelectric force microscopy Gallium semifluorinated_alkane GaAs UTEM MBE Permalloy Iron 3-hexylthiophene BismuthFerrite Ni81Fe19 ConductiveAFM Nickel Cobalt chemical_compound BFO Croatia high_resolution PhaseImaging Magnetostrictive SPMLabs PolymerBlend StyreneBeads Beads PolycrystallineFerroelectricBCZT Conducting SoftSample SrTiO3 PhaseTransition fluoroaalkane