Kondo effect on the transport properties of asymmetric dimer of quantum dots

Tomosuke Aono, Mikio Eto

Research output: Contribution to journalArticle

Abstract

The Kondo effect in asymmetric quantum dot dimer connected in series is studied based on the slave boson formalism of the Anderson model. When the dot-dot tunneling coupling is larger than the level broadening, the bonding and antibonding peaks of the Kondo resonances are observed. When the energy level difference between the two dots is large, the plateau structure of the conductance as a function of the gate voltage appears. The conductance at the plateau decreases as the dot-dot coupling increases, reflecting larger splitting of the bonding and anti-bonding peaks.

Original languageEnglish
Pages (from-to)1768-1769
Number of pages2
JournalPhysica B: Condensed Matter
Volume284-288
Issue numberPART II
Publication statusPublished - 2000

Fingerprint

Kondo effect
Dimers
Transport properties
Semiconductor quantum dots
transport properties
quantum dots
dimers
plateaus
Bosons
Electron energy levels
bosons
energy levels
formalism
Electric potential
electric potential

Keywords

  • Coupled quantum dots
  • Kondo effect
  • Slave boson formalism

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Kondo effect on the transport properties of asymmetric dimer of quantum dots. / Aono, Tomosuke; Eto, Mikio.

In: Physica B: Condensed Matter, Vol. 284-288, No. PART II, 2000, p. 1768-1769.

Research output: Contribution to journalArticle

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