2-vinylpyridine Current MagneticPhase Flake high_resolution SSRM Graphite DomainSwitching AtomicSteps Cross-section PVA AAO CancerCell molecular_self_assembly Nickel CopperFoil Platinum Polystyrene FrictionalForce HDD light_emission EvatecAG ForceVolumeMapping LifeScience Silicon MagneticArray norganic SingleCrystal UnivMaryland mfm_amplitude FastScan Lanthanum_aluminate WS2 SKPM ImideMonomer