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Controlling the Kondo Effect of an Adsorbed Magnetic Ion Through Its Chemical Bonding
Abstract
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 near the Fermi surface. We attribute the high Kondo temperature (more than 200 kelvin) to the small on-site Coulomb repulsion and the large half-width of the hybridized d-level.
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Citations
Cited by
Exchange Interaction between Single Magnetic Adatoms
Wahl, P., Simon, P., Diekhöner, L., Stepanyuk, V. S., Bruno, P., Schneider, M. A., & Kern, K. (2007) · Physical Review Letters · doi:10.1103/physrevlett.98.056601 · Cited by 210
Metadata
- Authors
- Zhao, A., Li, Q., Chen, L., Xiang, H., Wang, W., Pan, S., Wang, B., Xiao, X., Yang, J., Hou, J. G., & Zhu, Q.
- Venue
- Science
- Published
- 2005-09-02
- Volume
- 309
- Issue
- 5740
- Pages
- 1542-1544
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2128327001
- Cited by
- 664
- References
- 0
- FWCI
- 13.32
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhao, A., Li, Q., Chen, L., Xiang, H., Wang, W., Pan, S., Wang, B., Xiao, X., Yang, J., Hou, J. G., & Zhu, Q. (2005). Controlling the Kondo Effect of an Adsorbed Magnetic Ion Through Its Chemical Bonding. Science. https://doi.org/10.1126/science.1113449
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