Kondo effect in triple quantum dots
نویسندگان
چکیده
منابع مشابه
A tunable kondo effect in quantum dots
A tunable Kondo effect has been realized in small quantum dots. A dot can be switched from a Kondo system to a non-Kondo system as the number of electrons on the dot is changed from odd to even. The Kondo temperature can be tuned by means of a gate voltage as a single-particle energy state nears the Fermi energy. Measurements of the temperature and magnetic field dependence of a Coulomb-blockad...
متن کاملKondo Effect in Coupled Quantum Dots
We discuss Kondo systems in coupled-quantum-dots, with emphasis on the semiconductor quantum dot system. The rich variety of behaviors, such as distinct quantum phases, non-fermi liquid behavior, and associated quantum phase transitions and cross-over behaviors are reviewed. Experimental evidence for such novel characteristics is summarized. The observed behaviors may provide clues as to the re...
متن کاملKondo effect in quantum dots coupled to ferromagnetic leads.
We study the Kondo effect in a quantum dot coupled to ferromagnetic leads and analyze its properties as a function of the spin polarization of the leads. Based on a scaling approach, we predict that for parallel alignment of the magnetizations in the leads the strong-coupling limit of the Kondo effect is reached at a finite value of the magnetic field. Using an equation of motion technique, we ...
متن کاملKondo Effect in ac Transport through Quantum Dots
Rosa López,1 Ramón Aguado,1,2 Gloria Platero,1 and Carlos Tejedor3 1Teorı́a de la Materia Condensada, Instituto de Ciencia de Materiales (CSIC) Cantoblanco, 28049 Madrid, Spain 2Department of Applied Physics, Delft University of Technology, Lorentzweg 1, 2628CJ, Delft, The Netherlands 3Fı́sica Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain (Rece...
متن کاملOut-of-equilibrium kondo effect in double quantum dots
The out-of-equilibrium transport properties of a double quantum dot system in the Kondo regime are studied theoretically by means of a two-impurity Anderson Hamiltonian with interimpurity hopping. The Hamiltonian is solved by means of a nonequilibrium generalization of the slave-boson mean-field theory. It is demonstrated that measurements of the differential conductance dI/dV, for appropriate ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2006
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.73.153307