Microchannel blended polymers India Graphene Magnetic Graphite HBN Temperature AdhesionForce Ceramics MetalCompound TemperatureControlledAFM Cell AM_SKPM Jason PinpointPFM 2-vinylpyridine SrO PS_PVAC Tin disulfide ForceMapping SoftSample temperature_control HardDisk Zhi Polystyrene SThM INSP Phase Imprint KPFM LiBattery Tungsten MoirePattern kelvin probe force microscopy