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Thermoelectric transport phenomena in a single-level quantum dot coupled to ferromagnetic leads are considered theoretically in the Kondo regime. The dot is described by the Anderson model with Rashba type spin-orbit interaction. The…

Mesoscale and Nanoscale Physics · Physics 2014-12-10 Łukasz Karwacki , Piotr Trocha , Józef Barnaś

We study the electric and thermoelectric transport properties of correlated quantum dots coupled to two ferromagnetic leads and one superconducting electrode. Transport through such hybrid devices depends on the interplay of…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Krzysztof P. Wojcik , Ireneusz Weymann

We theoretically investigate the thermoelectric and spin thermoelectric properties of a T-shaped double quantum dot strongly coupled to two ferromagnetic leads, focusing on transport regime where the system exhibits the two-stage Kondo…

Mesoscale and Nanoscale Physics · Physics 2017-01-04 Krzysztof P. Wójcik , Ireneusz Weymann

We investigate the effect of $k$-cubic spin-orbit interaction on electrical and thermoelectric transport properties of two-dimensional fermionic systems. We obtain exact analytical expressions of the inverse relaxation time (IRT) and the…

Mesoscale and Nanoscale Physics · Physics 2017-10-26 Alestin Mawrie , Sonu Verma , Tarun Kanti Ghosh

We consider a single-level quantum dot coupled to two leads which are ferromagnetic in general. Apart from tunneling processes conserving electron spin, we also include processes associated with spin-flip of tunneling electrons, which…

Mesoscale and Nanoscale Physics · Physics 2018-08-22 Łukasz Karwacki , Józef Barnaś

We investigate the effect that Rashba spin-orbit coupling has on the low energy behaviour of a two dimensional magnetic impurity system. It is shown that the Kondo effect, the screening of the magnetic impurity at temperatures T < T_K, is…

Strongly Correlated Electrons · Physics 2007-11-01 Justin Malecki

We theoretically investigate the impact of correlated hopping on thermoelectric transport through a quantum dot coupled to ferromagnetic leads. Using the accurate numerical renormalization group method, we analyze the transport…

Mesoscale and Nanoscale Physics · Physics 2026-03-11 Kacper Wrześniewski , Ireneusz Weymann

One-dimensional quantum rings with Rashba and Dresselhaus spin-orbit couplings are studied analytically and are in perfect agreement with the numerical results. The topological charge of the spin field defined by the winding number along…

Mesoscale and Nanoscale Physics · Physics 2019-11-06 Shenglin Peng , Wenchen Luo , Fangping Ouyang , Tapash Chakraborty

The thermoelectric properties of strongly correlated quantum dots, described by a single level Anderson model coupled to conduction electron leads, is investigated using Wilson's numerical renormalization group method. We calculate the…

Strongly Correlated Electrons · Physics 2010-07-09 T. A. Costi , V. Zlatic

We investigate spin-dependent thermoelectric transport through a system of two coupled quantum dots attached to reservoirs of spin-polarized electrons. Generally, we focus on the strongly correlated regime of transport. To this end, a…

Mesoscale and Nanoscale Physics · Physics 2017-02-20 Łukasz Karwacki , Piotr Trocha

We study thermoelectric effects in Kondo correlated quantum dot coupled to ferromagnetic electrodes by calculating conductance, thermopower and thermal conductance in the Kondo regime. We also study the effect of the asymmetry in the…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 M. Krawiec , K. I. Wysokinski

Thermoelectric effects in a double quantum dot system coupled to external magnetic/nonmagnetic leads are investigated theoretically. The basic thermoelectric transport characteristics, like thermopower, electronic contribution to heat…

Mesoscale and Nanoscale Physics · Physics 2015-03-19 Piotr Trocha , Józef Barnaś

We investigate transport and thermoelectric properties of hybrid systems based on a single-level quantum dot and one superconducting lead. The other lead is generally normal-metallic ferromagnet. In the latter case single-particle transport…

Mesoscale and Nanoscale Physics · Physics 2017-05-03 Piotr Trocha , Józef Barnaś

An alternating electric field, applied to a quantum dot, couples to the electron spin via the spin-orbit interaction. We analyze different types of spin-orbit coupling known in the literature and find two efficient mechanisms of spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Vitaly N. Golovach , Massoud Borhani , Daniel Loss

We investigate the spin-resolved transport properties, such as the linear conductance and the tunnel magnetoresistance, of a double quantum dot device attached to ferromagnetic leads and look for signatures of SU(4) symmetry in the Kondo…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 Ireneusz Weymann , Razvan Chirla , Piotr Trocha , Catalin Pascu Moca

We study thermoelectric transport through double quantum dots system with spin-dependent interdot coupling and ferromagnetic electrodes by means of the non-equilibrium Green function in the linear response regime. It is found that the…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Qiang Wang , Haiqing Xie , Hujun Jiao , Zhi-Jian Li , Yi-Hang Nie

We present a comprehensive theoretical analysis of the spin-dependent thermoelectric properties of a double quantum dot system coupled to a topological superconducting nanowire and ferromagnetic leads. The study focuses on the behavior of…

Mesoscale and Nanoscale Physics · Physics 2025-09-18 Piotr Majek , Ireneusz Weymann

Spin properties of single electron states in laterally coupled quantum dots in the presence of a perpendicular magnetic field are studied by exact numerical diagonalization. Dresselhaus (linear and cubic) and Bychkov-Rashba spin-orbit…

Other Condensed Matter · Physics 2007-05-23 Peter Stano , Jaroslav Fabian

A numerically exact calculation of the T=0 transport properties of a quantum wire interacting with a lateral two-level quantum dot is presented. The wire conductance is calculated for all different states of charge and spin of the quantum…

Strongly Correlated Electrons · Physics 2007-05-23 Maria A. Davidovich , E. V. Anda , C. A. Busser , G. Chiappe

We consider small ballistic quantum dots weakly coupled to the leads in the chaotic regime and look for significant spin-orbit effects. We find that these effects can become quite prominent in the vicinity of degeneracies of many-body…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Ganpathy Murthy , R. Shankar
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