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 language | English (US) |
|---|---|
| Article number | 066801 |
| Journal | Physical Review Letters |
| Volume | 108 |
| Issue number | 6 |
| DOIs | |
| State | Published - Feb 7 2012 |
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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 journal › Article
}
TY - JOUR
T1 - Bethe ansatz approach to the Kondo effect within density-functional theory
AU - Bergfield, Justin P.
AU - Liu, Zhen Fei
AU - Burke, Kieron
AU - Stafford, Charles A
PY - 2012/2/7
Y1 - 2012/2/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84863011761&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863011761&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.108.066801
DO - 10.1103/PhysRevLett.108.066801
M3 - Article
C2 - 22401100
AN - SCOPUS:84863011761
VL - 108
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 6
M1 - 066801
ER -