+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Kondo resonance in a mesoscopic ring coupled to a quantum dot: exact results for the Aharonov-Bohm-Casher effects

Kondo resonance in a mesoscopic ring coupled to a quantum dot: exact results for the Aharonov-Bohm-Casher effects

Physical Review Letters 87(1): 016602

We study the persistent currents induced by both the Aharonov-Bohm and Aharonov-Casher effects in a one-dimensional mesoscopic ring coupled to a sidebranch quantum dot at Kondo resonance. For privileged values of the Aharonov-Bohm-Casher fluxes, the problem can be mapped onto an integrable model, exactly solvable by a Bethe ansatz. In the case of a pure magnetic Aharonov-Bohm flux, we find that the presence of the quantum dot has no effect on the persistent current. In contrast, the Kondo resonance interferes with the spin-dependent Aharonov-Casher effect to induce a current which, in the strong-coupling limit, is independent of the number of electrons in the ring.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 046508969

Download citation: RISBibTeXText

PMID: 11461484

DOI: 10.1103/physrevlett.87.016602

Related references

Exact equivalence of spin-1/2 Aharonov-Bohm and Aharonov-Casher effects. Physical Review Letters 64(20): 2347-2349, 1990

Mesoscopic Kondo effect in an Aharonov-Bohm ring. Physical Review Letters 85(26 Pt 1): 5619-5622, 2000

Mesoscopic superconducting analogs of the Aharonov-Bohm-Casher effect. Physical Review Letters 74(22): 4519-4522, 1995

Aharonov-Bohm oscillations in a mesoscopic ring with a quantum dot. Physical Review. B Condensed Matter 52(20): 14360-14363, 1995

Analytical expression of Kondo temperature in quantum dot embedded in Aharonov-Bohm ring. Nanoscale Research Letters 6: 604, 2011

Relativistic Quantum Statistical Aharonov-Bohm Effect of Many-Boson System in Mesoscopic Ring. Communications in Theoretical Physics 29(1): 33-42, 1998

Equivalence between Aharonov-Bohm and Aharonov-Casher effects, and motive forces. Physical Review. A Atomic Molecular and Optical Physics 50(6): 5320-5323, 1994

Aharonov-Bohm and Aharonov-Casher tunneling effects and edge states in double-barrier structures. Physical Review. B Condensed Matter 50(4): 2678-2680, 1994

Aharonov-Casher and scalar Aharonov-Bohm topological effects. Physical Review Letters 108(7): 070405, 2012

Electrostatic Aharonov-Bohm conductance oscillations in a mesoscopic ring: Effects of potential discontinuities. Physical Review. B Condensed Matter 49(3): 1844-1848, 1994

Resonance and phase shift in an open Aharonov-Bohm ring with an embedded quantum dot. Journal of Physics. Condensed Matter 21(1): 015303, 2009

Effects of interactions in transport through Aharonov-Bohm-Casher interferometers. Physical Review Letters 100(1): 016803, 2008

Magnetically tunable Kondo-Aharonov-Bohm effect in a triangular quantum dot. Physical Review Letters 96(4): 046601, 2006

Tunable pseudogap Kondo effect and quantum phase transitions in Aharonov-Bohm interferometers. Physical Review Letters 102(16): 166806, 2009

Thermopower of an Aharonov-Bohm interferometer: theoretical studies of quantum dots in the Kondo regime. Physical Review Letters 88(13): 136601, 2002