2018
DOI: 10.1088/2399-6528/aac423
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Analytic treatment of the thermoelectric properties for two coupled quantum dots threaded by magnetic fields

Abstract: Coupled double quantum dots (c-2QD) connected to leads have been widely adopted as prototype model systems to verify interference effects on quantum transport at the nanoscale. We provide here an analytic study of the thermoelectric properties of c-2QD systems pierced by a uniform magnetic field. Fully analytic and easy-to-use expressions are derived for all the kinetic functionals of interest. Within the Green's function formalism, our results allow a simple inexpensive procedure for the theoretical descripti… Show more

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Cited by 9 publications
(7 citation statements)
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“…A great advantage of nanoscale systems is that one can make such a transmission node or nodify the spectrum T (ε) of any materials by manipulating how a nanostructure connects with the surroundings, i.e., by the Fano effect 15,18,19,21 . One can control the effect by changing gate voltages along the direct conducting channel of a quantum-dot interferometer, or rotating the side group of a single-molecule junction.…”
Section: Phenomenology Of Thermoelectric Enhancementmentioning
confidence: 99%
See 2 more Smart Citations
“…A great advantage of nanoscale systems is that one can make such a transmission node or nodify the spectrum T (ε) of any materials by manipulating how a nanostructure connects with the surroundings, i.e., by the Fano effect 15,18,19,21 . One can control the effect by changing gate voltages along the direct conducting channel of a quantum-dot interferometer, or rotating the side group of a single-molecule junction.…”
Section: Phenomenology Of Thermoelectric Enhancementmentioning
confidence: 99%
“…1a), we explore the idea of thermoelectric enhancement by the Fano resonance, focusing on the nonlinear transport regime. The idea has been pushed forward within the linear-response theory both theoretically [15][16][17][18][19][20][21] and experimentally (see Ref. 22 and references therein), as well as regulating quantum coherence 23,24 or the effect caused by the transmission node [25][26][27][28] .…”
Section: Introductionmentioning
confidence: 99%
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“…In fact, for nanostructures the non linear response regime is of primary interest because at the nanometer scale temperature and bias gradients may become very large. Description of thermoelectric phenomena at the nanoscale as in the case of quantum wells [16], quantum dots [17,18], nanowires [19], molecular junctions [20] or superlattices [21] deserves to consider fundamental aspects connected with quantum effects, thermodynamics and scale of electron thermalization [22][23][24][25][26][27]. Moreover, quantum transport formalism provides an appropriate microscopic description of charges and heat flows [28][29][30] .…”
Section: Introductionmentioning
confidence: 99%
“…Such a qualitative interpretation of the PTE detection is then supported by the quantitative comparison of the experimental data to the outcome of a numerical model of charge and heat transport through the QD based on the Landauer approach , to evaluate its thermoelectric properties, starting from electrical parameters that mimic our experimental configuration (see the Supporting Information). The results, shown in Figure c, exhibit a good agreement with the experimental data (Figure a).…”
mentioning
confidence: 96%