Kondo effect in single-molecule spintronic devices

J. Martinek, L. Borda, Y. Utsumi, J. König, J. von Delft, D. C. Ralph, G. Schön, S. Maekawa

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2 Citations (Scopus)

Abstract

We study the Kondo effect in a quantum dot or a single molecule coupled to ferromagnetic leads. Spin-dependent quantum charge fluctuations in the dot induce the lifting of the spin degeneracy of the dot. It leads to the dot's level spin splitting observed in the nonequilibrium transport as a splitting of a zero-bias anomaly in the differential conductance. We discuss basic properties of this effect and its temperature dependence using numerical renormalization group technique. Recent experimental results fit well to our theoretical consideration.

Original languageEnglish
Pages (from-to)e343-e345
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - Mar 1 2007

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Keywords

  • Ferromagnetism
  • Kondo effect
  • Molecular spintronics
  • Quantum dot
  • Spin-dependent transport

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Martinek, J., Borda, L., Utsumi, Y., König, J., von Delft, J., Ralph, D. C., Schön, G., & Maekawa, S. (2007). Kondo effect in single-molecule spintronic devices. Journal of Magnetism and Magnetic Materials, 310(2 SUPPL. PART 2), e343-e345. https://doi.org/10.1016/j.jmmm.2006.10.322