Kevlar Flake KPFM SRAM Hafnia Ucl SetpointMode single_layer PiezoelectricForceMicroscopy SICM NUS_Physics StrontiumTitanate Zhi FFM Alloy Iron TCS ContactModeDots SingleCrystal Ito Resistance fluorocarbon Pattern Glass Holes NTU HexagonalBN Friction fifber neodymium_magnets Tin disulfide NiFe CVD PVAP3HT BismuthFerrite