+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Nonequilibrium transport through double quantum dots: Kondo effect versus antiferromagnetic coupling



Nonequilibrium transport through double quantum dots: Kondo effect versus antiferromagnetic coupling



Physical Review Letters 89(13): 136802



We theoretically study the nonequilibrium transport properties of double quantum dots, in both series and parallel configurations. Our results lead to novel experimental predictions that unambiguously signal the transition from a Kondo state to an antiferromagnetic spin-singlet state, directly reflecting the physics of the two-impurity Kondo problem. We prove that the nonlinear conductance through parallel dots directly measures the exchange constant J between the spins of the dots. In serial dots, the nonlinear conductance provides an upper bound on J.

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

Accession: 046815979

Download citation: RISBibTeXText

PMID: 12225046

DOI: 10.1103/PhysRevLett.89.136802


Related references

Kondo Effect Versus Magnetic Coupling in Indirectly Coupled Double Quantum Dots. Communications in Theoretical Physics 54(5): 933-937, 2010

Quantum phase transition and underscreened Kondo effect in electron transport through parallel double quantum dots. Journal of Physics. Condensed Matter 21(45): 455303, 2009

Nonequilibrium transport through double quantum dots: exact results near a quantum critical point. Physical Review Letters 102(4): 047201, 2009

Kondo-Dicke resonances in electronic transport through double quantum dots. Journal of Nanoscience and Nanotechnology 10(4): 2489-2494, 2010

Out-of-equilibrium kondo effect in double quantum dots. Physical Review Letters 85(9): 1946-1949, 2000

The role of the indirect tunneling processes and asymmetry in couplings in orbital Kondo transport through double quantum dots. Journal of Physics. Condensed Matter 24(5): 055303, 2012

Kondo effect in carbon nanotube quantum dots with spin-orbit coupling. Physical Review Letters 101(24): 246805, 2008

Kondo effect in double quantum dots with ferromagnetic RKKY interaction. Journal of Physics. Condensed Matter 29(2): 025601, 2016

Universal transport signatures in two-electron molecular quantum dots: gate-tunable Hund's rule, underscreened Kondo effect and quantum phase transitions. Journal of Physics. Condensed Matter 23(24): 243202, 2011

Orbital Kondo effect and spin polarized transport through quantum dots. Physica Status Solidi 243(1): 206-209, 2006

Strong spin Seebeck effect in Kondo T-shaped double quantum dots. Journal of Physics. Condensed Matter 29(5): 055303, 2016

Interplay of the Kondo effect and spin-polarized transport in magnetic molecules, adatoms, and quantum dots. Physical Review Letters 106(12): 126602, 2011

Zero-field kondo splitting and quantum-critical transition in double quantum dots. Physical Review Letters 97(9): 096603, 2006

Pseudospin-resolved transport spectroscopy of the Kondo effect in a double quantum dot. Physical Review Letters 110(4): 046604, 2013

z = 3 antiferromagnetic quantum criticality driven by the Kondo effect. Physical Review Letters 104(15): 156403, 2010