Spintronics in quantum dots: Kondo effect in quantum dots in presence of itinerant-electron magnetism

Jan Martinek, M. Sindel, L. Borda, Yasuhiro Utsumi, H. Imamura, J. Barnaś, S. Maekawa, J. König, J. Von Delft, G. Schön

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We study the Kondo effect in a quantum dot (QD) coupled to ferromagnetic leads, and analyze its properties. The main goal of our work is to investigate how ferromagnetic leads influence the Kondo effect. The new key questions, which emerge are: (i) does the Kondo effect survive and how does the spin-asymmetry affect the effect, (ii) how are the transport properties modified, and (iii) what is the ground state of the system? We analyzed these and related questions using scaling arguments, the nonequilibrium equation of motion technique, and numerical renormalization group (NRG) approach.

Original languageEnglish
Title of host publicationRealizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation
PublisherWorld Scientific Publishing Co.
Pages421-426
Number of pages6
ISBN (Print)9789812701619, 9789812564689
DOIs
Publication statusPublished - Jan 1 2005

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Kondo effect
quantum dots
electrons
equations of motion
transport properties
asymmetry
scaling
ground state

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Martinek, J., Sindel, M., Borda, L., Utsumi, Y., Imamura, H., Barnaś, J., ... Schön, G. (2005). Spintronics in quantum dots: Kondo effect in quantum dots in presence of itinerant-electron magnetism. In Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation (pp. 421-426). World Scientific Publishing Co.. https://doi.org/10.1142/9789812701619_0065

Spintronics in quantum dots : Kondo effect in quantum dots in presence of itinerant-electron magnetism. / Martinek, Jan; Sindel, M.; Borda, L.; Utsumi, Yasuhiro; Imamura, H.; Barnaś, J.; Maekawa, S.; König, J.; Von Delft, J.; Schön, G.

Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation. World Scientific Publishing Co., 2005. p. 421-426.

Research output: Chapter in Book/Report/Conference proceedingChapter

Martinek, J, Sindel, M, Borda, L, Utsumi, Y, Imamura, H, Barnaś, J, Maekawa, S, König, J, Von Delft, J & Schön, G 2005, Spintronics in quantum dots: Kondo effect in quantum dots in presence of itinerant-electron magnetism. in Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation. World Scientific Publishing Co., pp. 421-426. https://doi.org/10.1142/9789812701619_0065
Martinek J, Sindel M, Borda L, Utsumi Y, Imamura H, Barnaś J et al. Spintronics in quantum dots: Kondo effect in quantum dots in presence of itinerant-electron magnetism. In Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation. World Scientific Publishing Co. 2005. p. 421-426 https://doi.org/10.1142/9789812701619_0065
Martinek, Jan ; Sindel, M. ; Borda, L. ; Utsumi, Yasuhiro ; Imamura, H. ; Barnaś, J. ; Maekawa, S. ; König, J. ; Von Delft, J. ; Schön, G. / Spintronics in quantum dots : Kondo effect in quantum dots in presence of itinerant-electron magnetism. Realizing Controllable Quantum States: Mesoscopic Superconductivity and Spintronics - In the Light of Quantum Computation. World Scientific Publishing Co., 2005. pp. 421-426
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