HACrystal Thermoplastic_polyurethane MagneticForceMicroscopy heterojunctions Mfm AmplitudeModulation Fiber Chromium Titanate Vac OpticalElement BoronNitride LaAlO3 Layer Modulus Melt AM_SKPM Molybdenum_disulfide molecule LiftMode Graphene SKPM Christmas AAO STM PetruPoni Oxidation strontiu_titanate MagneticPhase Galfenol AlkaneFilm mechanical_property hard_disk_media single_layer India