oxide_layer BFO MagneticForceMicroscopy StrontiuTitanate phase_change Magnetostrictive SRAM Tapping biocompatible Multiferroic_materials University_of_Regensburg Gallium_Arsenide Alloy VortexCore PMNPT Hexylthiophene Silicon ConductingPolymer DentalProsthesis MultiferroicMaterials DNA Electical&Electronics temp_control Neodymium NUSNNI Defects ReflexLens Mechinical LightEmiting Bismuth PUR NiFe Hexatriacontane ThermalDetectors UnivCollegeLondon