Polytetrafluoroethylene Chungnam_National_University NiFe Nanopattern SThM Growth Resistance Wildtype Optic hard_disk Optoelectonics optoelectronics BoronNitride TappingMode Hexatriacontane gallium_nitride Perovskite TipBiasMode mfm_amplitude lithography PDMS AM_SKPM Subhajjit Ca10(PO4)6(OH)2 Alloy layers Calcite IRDetector Aluminum SiliconOxide fifber FailureAnlaysis Tin sulfide self_assembly SicMosfet