LightEmission neodymium_magnets Tin sulfide mechanical_property FrequencyModulation Ni81Fe19 Thermoplastic_polyurethane AmplitudeModulation GaN FrictionForce self_healing LifeScience Varistor Magnetic Force Microscopy Cancer Solution Perovskite Chungnam_National_University SolarCell LiBattery Defects SoftSample Piezo MembraneFilter YttriaStabilizedZirconia Reading ForceVolumeImage BlockCopolymer self_assembly MfmAmplitude doped Magnetostrictive Butterfly 2d_materials cooling