Korea NTU PatternedSapphireSubstrat atomic_steps IVSpectroscopy ShenYang sputter Regensburg Hydroxyapatite Polymer thermal_conductivity KevlarFiber Indent Semiconductor PhaseChange Adhesive HighAspect PVA cooling norganic PVAC Imprint FrequencyModulation Non-ContactMode Tape EPFL Reduction HardDiskMedia Phenanthrene H-BN BFO Steps CHRYSALIS_INC Growing AM_SKPM