UnivCollegeLondon DataStorage plastic chemical_compound Optic SoftSample margarine Glass ring shape mfm_amplitude Cell alkanes Ananth AM_SKPM Bio Composition NUSNNI Composite HardDisk Dopped Modulus Typhimurium Corrosion Temperature temperature controller AFM ThermalProperties LateralForce SSRM PECurve pulsed_laser_deposition PolyvinylideneFluoride Insulator Mfm MultiferroicMaterials hard_disk