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The thermoelectric properties of quantum dot arrays (QDAs) embedded in nanowires connected to electrodes are studied theoretically in the Coulomb blockade regime. A Hurbbard-Anderson model is used to simulate the electronic contribution to…

介观与纳米尺度物理 · 物理学 2015-07-08 Yen-Chun Tseng , David M. -T. Kuo , Yia-Chung Chang , Chia-Wei Tsai

We have theoretically studied the thermoelectric properties of serially coupled quantum dots (SCQD) embedded in an insulator matrix connected to metallic electrodes. In the framework of Keldysh Green's function technique, the Landauer…

介观与纳米尺度物理 · 物理学 2012-12-18 David M. -T. Kuo , Y. C. Chang

The electrical conductance, thermal conductance, thermal power and figure of merit (ZT) of semiconductor quantum dots (QDs) embedded into an insulator matrix connected with metallic electrodes are theoretically investigated in the Coulomb…

介观与纳米尺度物理 · 物理学 2015-05-18 David M. -T. Kuo , Yia-chung Chang

We investigate the thermoelectric properties of a T-shaped double quantum dot system described by a generalized Anderson Hamiltonian. The system's electrical conduction (G) and the fundamental thermoelectric parameters such as the Seebeck…

介观与纳米尺度物理 · 物理学 2015-06-23 A. L. Monteros , G. S. Uppal , S. R. McMillan , M. Crisan , I. Tifrea

A detailed investigation of the non-equilibrium steady-state electric and thermoelectric transport properties of a quantum dot coupled to the normal metallic and s-wave superconducting reservoirs (N-QD-S) are provided within the Coulomb…

介观与纳米尺度物理 · 物理学 2022-02-22 Sachin Verma , Ajay

It is theoretically demonstrated that the figure of merit ($ZT$) of quantum dot (QD) junctions can be significantly enhanced when the degree of degeneracy of the energy levels involved in electron transport is increased. The theory is based…

介观与纳米尺度物理 · 物理学 2017-03-08 David M T Kuo , Chih-Chieh Chen , Yia-Chung Chang

We investigate the thermoelectric transport properties of an interacting parallel double quantum dot in the Coulomb-blockade regime. Building on an analytical solution based on an equation-of-motion technique, we extend the formalism for…

介观与纳米尺度物理 · 物理学 2025-10-24 Nahual Sobrino

In this article we review the thermoelectric properties of three terminal devices with Coulomb coupled quantum dots (QDs) as observed in recent experiments [1,2]. The system we consider consists of two Coulomb-blockade QDs one of which can…

介观与纳米尺度物理 · 物理学 2016-11-17 Holger Thierschmann , Rafael Sánchez , Björn Sothmann , Hartmut Buhmann , Laurens W. Molenkamp

The thermal power ($PF=S^2G_e$) depends on the Seebeck coefficient ($S$) and electron conductance ($G_e$). The enhancement of $G_e$ will unavoidably suppress $S$ because they are closely related. As a consequence, the optimization of $PF$…

介观与纳米尺度物理 · 物理学 2020-05-26 David M T Kuo

The charge transport of a serially coupled quantum dots (SCQD) connected to the metallic electrodes is theoretically investigated in the Coulomb blockade regime. A closed-form expression for the tunneling current of SCQD in the {\color{red}…

介观与纳米尺度物理 · 物理学 2015-05-27 David M. -T. Kuo , Shiue-Yuan , Yia-chung Chang

The effect of long distance coherent tunneling (LDCT) on the charge and heat currents in serially coupled triple quantum dots (TQDs) connected to electrodes is illustrated by using a combination of the extended Hurbbard model and Anderson…

介观与纳米尺度物理 · 物理学 2015-06-17 David M T Kuo , Yia-chung Chang

We report a numerical study of transport properties of a quantum dot with superconducting leads. We introduce a general phenomenological model of quantum dot transport, in which electron tunnel rates are computed within the Fermi's Golden…

凝聚态物理 · 物理学 2009-10-28 C. B. Whan , T. P. Orlando

I discuss thermoelectric properties of a quantum dot coupled to one normal and one superconducting lead in the presence of Kondo effect and Andreev scattering. I will focus on conductance, thermal conductance, thermopower and related…

介观与纳米尺度物理 · 物理学 2008-10-07 Mariusz Krawiec

We study the thermoelectric coefficients of a multi-level quantum dot (QD) weakly coupled to two electron reservoirs in the Coulomb blockade regime. Detailed calculations and analytical expressions of the power factor and the figure of…

介观与纳米尺度物理 · 物理学 2015-05-20 M. Tsaousidou , G. P. Triberis

The nonlinear electron and heat currents of quantum dot molecules (QDMs) under a temperature bias are theoretically investigated, including all correlation functions arising from electron Coulomb interactions in QDMs. Unlike the case of…

介观与纳米尺度物理 · 物理学 2016-12-13 Chih-Chieh Chen , David M T Kuo , Yia-Chung Chang

Quantum dots (QDs) are good model systems for fundamental studies of mesoscopic transport phenomena using thermoelectric effects because of their small size, electrostatically tunable properties and thermoelectric response characteristics…

介观与纳米尺度物理 · 物理学 2016-11-16 Artis Svilans , Martin Leijnse , Heiner Linke

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…

介观与纳米尺度物理 · 物理学 2015-03-19 Piotr Trocha , Józef Barnaś

The nonlinear thermoelectric properties of serially coupled quantum dots (SCQDs) embedded in a nanowire connected to metallic electrodes are theoretically studied in the Coulomb blockade regime. We demonstrate that the electron heat current…

介观与纳米尺度物理 · 物理学 2015-06-16 Yen-Chun Tseng , David M T Kuo , Yia-chung Chang , Yan-Ting Lin

We have studied the temperature dependent thermopower of gate-defined, lateral quantum dots in the Coulomb blockade regime using an electron heating technique. The line shape of the thermopower oscillations depends strongly on the…

介观与纳米尺度物理 · 物理学 2015-06-25 R. Scheibner , E. G. Novik , T. Borzenko , M. Koenig , D. Reuter , A. D. Wieck , H. Buhmann , L. W. Molenkamp

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…

强关联电子 · 物理学 2010-07-09 T. A. Costi , V. Zlatic
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