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Controlling the Kondo Effect of an Adsorbed Magnetic Ion Through Its Chemical Bonding
2005
Science
We report that the Kondo effect exerted by a magnetic ion depends on its chemical environment. A cobalt phthalocyanine molecule adsorbed on an Au(111) surface exhibited no Kondo effect. Cutting away eight hydrogen atoms from the molecule with voltage pulses from a scanning tunneling microscope tip allowed the four orbitals of this molecule to chemically bond to the gold substrate. The localized spin was recovered in this artificial molecular structure, and a clear Kondo resonance was observed
doi:10.1126/science.1113449
pmid:16141069
fatcat:luwinejxcfavjaxhustoqaxvxq