Spain Optoelectonics ring shape align EFM domain_switching Croatia Self-assembledMonolayer Al2O3 margarine molecular_self_assembly ScanningThermalMicroscopy Transparent kelvin probe force microscopy SPMLabs Metal EFMAmplitude SiWafer PyroelectricDetector Magnetostrictive Ni-FeAlloy Austenite Molybdenum_disulfide Ecoli TempControl INSPParis BismuthVanadate EvatecAG Gallium_Arsenide Copolymer Electrode PetruPoni_Institute HexagonalBoronNitride Photovoltaics SolarCell