Bethe ansatz approach to the Kondo effect within density-functional theory

Justin P. Bergfield, Zhen Fei Liu, Kieron Burke, Charles A Stafford

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Transport through an Anderson junction (two macroscopic electrodes coupled to an Anderson impurity) is dominated by a Kondo peak in the spectral function at zero temperature. We show that the single-particle Kohn-Sham potential of density-functional theory reproduces the linear transport, despite the lack of a Kondo peak in its spectral function. Using Bethe ansatz techniques, we calculate this potential for all coupling strengths, including the crossover from mean-field behavior to charge quantization caused by the derivative discontinuity. A simple and accurate interpolation formula is also given.

Original languageEnglish (US)
Article number066801
JournalPhysical Review Letters
Volume108
Issue number6
DOIs
StatePublished - Feb 7 2012

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Kondo effect
density functional theory
interpolation
crossovers
discontinuity
impurities
electrodes
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Bethe ansatz approach to the Kondo effect within density-functional theory. / Bergfield, Justin P.; Liu, Zhen Fei; Burke, Kieron; Stafford, Charles A.

In: Physical Review Letters, Vol. 108, No. 6, 066801, 07.02.2012.

Research output: Contribution to journalArticle

Bergfield, Justin P. ; Liu, Zhen Fei ; Burke, Kieron ; Stafford, Charles A. / Bethe ansatz approach to the Kondo effect within density-functional theory. In: Physical Review Letters. 2012 ; Vol. 108, No. 6.
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