Inducing and Controlling Molecular Magnetism through Supramolecular Manipulation
Jan Homberg, Alexander Weismann, Richard Berndt, Manuel Gruber
Abstract
Diamagnetic H2 phthalocyanine molecules are probed on superconducting Pb(100) using a low-temperature scanning tunneling micoscope (STM). In supramolecular arrays made with the STM, the molecules acquire a spin as detected via the emergence of Yu-Shiba-Rusinov resonances. The spin moments vary among the molecules and are determined by the electrostatic field that results from polar bonds in the surrounding Pc molecules. The moments are further finely tuned by repositioning the hydrogen atoms of the inner macrocycle of the surrounding molecules.
Topics & Concepts
DiamagnetismSupramolecular chemistryMagnetismMoleculeScanning tunneling microscopePhthalocyanineChemical physicsMaterials scienceChemical polaritySpin (aerodynamics)SuperconductivityNanotechnologyCrystallographyCondensed matter physicsChemistryMagnetic fieldPhysicsThermodynamicsOrganic chemistryQuantum mechanicsPhysics of Superconductivity and MagnetismQuantum and electron transport phenomenaQuantum, superfluid, helium dynamics