Ferrite hard_disk_media Regensburg StrontiuTitanate Ceramic phase_change Scratch domain_switching Hydroxyapatite Dimethicone Annealing Graphite OxideLayer WWafer Galfenol Formamidinium_lead_iodide HDD KevlarFiber Chemical_Vapor_Deposition light_emission MfmAmplitude BiVO4 Gallium_Arsenide TemperatureControl NTU FloppyDisk Vinylpyridine Chloroform BlockCopolymer GaAs temperature_control Zagreb PvdfBead Forevision atomic_steps